Evil suicide bomber Salman Abedi began building the device which killed 22 people in a 12th floor council flat, investigators now believe.

The 22-year-old killer sub-let a home in Somerton Court, in the Blackley area of the city, which was raided by armed police on Wednesday evening.

His landlord contacted police after seeing Abedi’s name in the news, saying a strong smell of chemicals was left behind by his former tenant.

It emerged as police arrested two men aged 20 and 22 on suspicion of terror offences in connection with the Manchester bombing last night.  

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Police believe suicide bomber Salman Abedi developed the device which killed 22 people in a 12th floor flat in Somerton Court in the Blackley area of Manchester

Police believe suicide bomber Salman Abedi developed the device which killed 22 people in a 12th floor flat in Somerton Court in the Blackley area of Manchester

Police believe suicide bomber Salman Abedi developed the device which killed 22 people in a 12th floor flat in Somerton Court in the Blackley area of Manchester

The flat was raided on Wednesday after landlord Aiman al-Wafi contacted police having seen Salman Abedi's name in the news following the Manchester Arena atrocity

The flat was raided on Wednesday after landlord Aiman al-Wafi contacted police having seen Salman Abedi's name in the news following the Manchester Arena atrocity

Police outside Somerton Court in Blackley, which was raided on Wednesday by armed police

Police outside Somerton Court in Blackley, which was raided on Wednesday by armed police

The flat was raided on Wednesday after landlord Aiman al-Wafi contacted police having seen Salman Abedi’s name in the news following the Manchester Arena atrocity

Officers carried out a controlled explosion to break down the door of an address in the Cheetham Hill area of the city, bringing the number of arrests to 13. 

When he moved out of the sub-let flat last month, Abedi left behind clues suggesting he had practiced making explosives at the address.

Landlord Aiman al-Wafi, who The Times states had advertised the flat on Gumtree, discovered fire alarms had been deactivated, the electricity was switched off and windows had not been opened for weeks.

Police also raided a barber shop in Moss Side yesterday morning, where detectives believe he may have been stockpiling peroxide used to make the deadly device.

The owner of the barber shop, Abedi’s 24-year-old cousin Abdallah Forjani, was arrested on Wednesday and the business, on a parade of shops on a busy main road, immediately closed. 

Barber Abdallah Forjani (left), a cousin of Salman Abedi (right) has been arrested in connection with Monday's terror attack 

Barber Abdallah Forjani (left), a cousin of Salman Abedi (right) has been arrested in connection with Monday's terror attack 

Barber Abdallah Forjani (left), a cousin of Salman Abedi (right) has been arrested in connection with Monday’s terror attack 

One line of inquiry is that 22-year-old bomber Salman Abedi made the bomb while at a terror training camp in a conflict zone

One line of inquiry is that 22-year-old bomber Salman Abedi made the bomb while at a terror training camp in a conflict zone

Investigators have not ruled out the possibility that he traveled to Syria where he met up with Islamic extremists

Investigators have not ruled out the possibility that he traveled to Syria where he met up with Islamic extremists

Police believe bomber Salman Abedi built the device at a 12th floor flat he rented in Somerton Court, before adding the finishing touches at a town centre property 

Mohamed al-Hudarey said his landlord friend Aiman al-Wafi contacted police after seeing Abedi's face in the news, having 'put two and two together'

Mohamed al-Hudarey said his landlord friend Aiman al-Wafi contacted police after seeing Abedi's face in the news, having 'put two and two together'

Mohamed al-Hudarey said his landlord friend Aiman al-Wafi contacted police after seeing Abedi’s face in the news, having ‘put two and two together’

Fade'Away barber shop is rented by 24-year-old Abdallah Forjani (pictured) who is a cousin of the evil 22-year-old bomber

Fade'Away barber shop is rented by 24-year-old Abdallah Forjani (pictured) who is a cousin of the evil 22-year-old bomber

Fade’Away barber shop is rented by 24-year-old Abdallah Forjani (pictured) who is a cousin of the evil 22-year-old bomber

An officer was seen leaving the Fade Away barber shop in Moss Side with a bag full of evidence

An officer was seen leaving the Fade Away barber shop in Moss Side with a bag full of evidence

The man was carrying a bag as he left the shop

The man was carrying a bag as he left the shop

An officer was seen leaving the Fade’Away barber shop in Moss Side with a bag full of evidence (left and right) on Friday morning 

Abedi had rented the flat in Blackley for around seven weeks. Mr Wafi thought his tenant had been ‘into black magic’, a friend of the landlord said.

Mohamed al-Hudarey said Mr Wafi contacted police after seeing Abedi’s face in the news, having ‘put two and two together’.

He told ITV News: ‘When we heard the news about the horrible thing that happened in Manchester (involving) a man named Salman, he started to make a link between the news and that man who rented the flat from him.

‘What he found in the flat, he started to think… this is the man that made the bomb.’

A woman currently living in the flat where Abedi is thought to have built the bomb was arrested on Wednesday and subsequently released without charge

A woman currently living in the flat where Abedi is thought to have built the bomb was arrested on Wednesday and subsequently released without charge

A woman currently living in the flat where Abedi is thought to have built the bomb was arrested on Wednesday and subsequently released without charge

Men wearing body armour raided the flat in Blackley, Manchester, on Wednesday after being alerted to Abidi's activity by his former landlord

Men wearing body armour raided the flat in Blackley, Manchester, on Wednesday after being alerted to Abidi's activity by his former landlord

Men wearing body armour raided the flat in Blackley, Manchester, on Wednesday after being alerted to Abidi’s activity by his former landlord

Armed police were seen outside the block of flats where, Abidi is believed to have built his bomb, on Wednesday

Armed police were seen outside the block of flats where, Abidi is believed to have built his bomb, on Wednesday

Armed police were seen outside the block of flats where, Abidi is believed to have built his bomb, on Wednesday

And Mr al-Hudarey continued: ‘He found this stuff in the flat, he said to me that he thought he was making the bomb in the flat.’

He said there was a strong smell coming from the floor, curtains had been cut into small pieces, and a piece of metal was found in the bathroom.

‘He told me: “That man was doing something inside the flat but I don’t know what it is,”‘ Mr al-Hudarey said.

The day after Abedi left the flat in mid April, he travelled to Libya. 

A woman currently living at the flat was briefly arrested on Wednesday, but subsequently released.  

Investigators believe the finishing touches to the bomb were carried at a flat in Granby Row, in the city centre. Abedi rented this for four days before the atrocity

Investigators believe the finishing touches to the bomb were carried at a flat in Granby Row, in the city centre. Abedi rented this for four days before the atrocity

Investigators believe the finishing touches to the bomb were carried at a flat in Granby Row, in the city centre. Abedi rented this for four days before the atrocity

Investigators believe the finishing touches to the bomb were carried at a flat in Granby Row, in the city centre. He rented this for four days before the atrocity. 

Reports surfaced yesterday claiming that Abedi opened a bank account a year ago that was unused until he used it to pay for the nuts, bolts, screws and nails he used in the explosive attack on the Ariana Grande concert at Manchester Arena.

He is believed to have made two separate visits to B&Q and Screwfix in Manchester to buy materials for the bomb and ‘stockpiled’ them before leaving for Libya last month.

Armed police yesterday arrested a 44-year-old man on a bus bound for central Manchester in front of terrified passengers.

In the early hours of Saturday morning, another two men – aged 22 and 20 – were arrested. It brought the total number of people arrested in the investigation to 13.

Eleven are being questioned in custody. 

Witnesses have said he was arrested on a bus bound for the city centre by plainclothed officers wearing bulletproof vests at around 7pm yesterday evening.

Terror arrests: Manchester suicide bomber Salman Abedi’s family tree shows his father Ramadan and two brothers Hashem and Ismail have all been arrested. The bomber’s cousin Abdalla Forjani was held on Wednesday in Moss Side, Manchester   

The landlord recounted seeing Abedi's brother Hashem, who has been arrested in Libya, at the flat in Blackley which he sub-let

The landlord recounted seeing Abedi's brother Hashem, who has been arrested in Libya, at the flat in Blackley which he sub-let

The landlord recounted seeing Abedi’s brother Hashem, who has been arrested in Libya, at the flat in Blackley which he sub-let

Ramadan Abedi, the father of Salman Abedi, the bomber who killed 22 concert-goers in an attack in Manchester, was arrested in Tripoli in the wake of Monday's suicide attack

Ramadan Abedi, the father of Salman Abedi, the bomber who killed 22 concert-goers in an attack in Manchester, was arrested in Tripoli in the wake of Monday's suicide attack

Ramadan Abedi, the father of Salman Abedi, the bomber who killed 22 concert-goers in an attack in Manchester, was arrested in Tripoli in the wake of Monday’s suicide attack

Abedi has been linked to a group of disaffected young men who went to fight in Libya with their fathers before switching allegiance to ISIS, it has been revealed.  

Salaman Abedi is understood to have been in Libya at the same time as some of the youths, all around the same age, who later faced terrorism charges.

The bomber travelled to fight on the frontline during the 2011 Arab Spring to topple dictator Muammar Gaddafi alongside his father Ramadan Abedi, a 51-year-old airport security guard with links to Al Qaeda. 

Ramadan was one of the men from the North West in Libya who called themselves the ‘Manchester Fighters’. 

It is thought that one of the counter terrorism raids launched yesterday was connected to the gang of Libyan extremists after police received a tip-off. 

Suicide bomber Abedi killed 22 people, including victims as young as eight, and injured dozens more after setting off a device in the foyer of Manchester Arena on Monday

Suicide bomber Abedi killed 22 people, including victims as young as eight, and injured dozens more after setting off a device in the foyer of Manchester Arena on Monday

Suicide bomber Abedi killed 22 people, including victims as young as eight, and injured dozens more after setting off a device in the foyer of Manchester Arena on Monday

Greater Manchester police have been told that Abedi was friends with at least two members of the group, who are all linked to Manchester.

The younger generation are understood to have switched allegiance to Isis after travelling to Libya with their fathers, all members of the militant Libyan Islamic Fighting Group [LIFG], which helped to overthrow the Gaddafi regime. The group is banned in Britain. 

There is no suggestion that the Forjani family, relatives of the bomber’s mother Samia Tabba, are part of the group being linked with ISIS. 

One of the men, who cannot be named for legal reasons, was convicted three years ago of helping jihadist recruits to travel to Syria and Iraq to fight for the terrorists.

He had dropped out of college in Manchester and joined the western-backed uprising in Libya in 2011 at the age of 17.

The second man was charged with terrorism offences and spent time in prison on remand before the prosecution offered no evidence. His father was sanctioned by the US more than a decade ago for financing the LIFG.

The revelation provides a further insight into Abedi’s path to radicalisation before he blew himself up on Monday night. Investigators are trying to discover what ties the bomber established with Isis extremists in Libya and Britain as he travelled between both countries.

A friend of Salman’s father, Akram Ramadan, 49, said: ‘A lot of dads went to fight Gaddafi in 2011.

‘We went and fought together, we were really known, our unit fighting in the hills was called the Manchester Fighters.’    

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