Police say he was part of a network and they are racing to track down his links.
Better known as Abu Ismail to the Libyan community in Manchester, Ramadan worked as an odd-job man in the city and has been working for the Libyan police force in recent years, according to an official.
Police made two more arrests in Manchester on Saturday on suspicion of terrorism offenses, bringing the number of suspects in custody to 11. "Always", Fadl said. "Very few people in the community here were close to him and therefore Salman's fanaticism wasn't something the community was aware of".
Police said they were called at 9:33 pm on Monday after an explosion at Manchester Arena during a concert by USA pop star Ariana Grande, who is popular with teenagers and pre-teens. His father, Ramadan, and another brother, 18-year-old Hashim, were detained a day later by Libyan authorities in Tripoli, where they now live.
Williams said "covert and discrete tactics" will also be in place to protect the transport network. His father has said Abedi was in Libya until earlier this month and had told family he planned to go to Saudi Arabia on a pilgrimage.
He reportedly was in contact with family members just before the attack.
Alongside a black-and-white photograph of the musicians embracing, Miley wrote: "wishing I could give my friend @arianagrande a great big hug right now. love love love you.so sorry you had to be apart of such a tragic event! my most honest condolences to anyone and everyone affected by this horrific attack! all I can do is send as much HOPE & PEACE your way!"
At one apartment building in Manchester, heavily armed police swarmed in and a controlled explosion was heard.
Authorities have identified Salman Abedi as the suspected bomber who killed 22 people and injured dozens more during an Ariana Grande concert at Manchester Arena on Monday night. Her French counterpart Gerard Collomb said the man had links with Islamic State and had probably visited Syria as well. "Our way of life has once again been threatened but we will overcome this together", the statement said.
Grande cancelled concerts that were to take place Thursday and Friday in London, and in several other sites in Europe.
As police raids continued Friday, specially-trained firearms officers were being assigned patrol duty on trains for the first time in Britain. The UK threat level is at its highest level, meaning another attack may be imminent.
President Donald Trump said on Thursday that "deeply troubling" leaks to USA media about the Manchester suicide bombing would be investigated, after irate British police briefly stopped sharing information with US agencies.
British Prime Minister Theresa May said she plans to discuss the leaks with President Donald Trump at the North Atlantic Treaty Organisation summit in Brussels.
But many expect May's steady performance after the bombing to give her momentum.
Jeremy Corbyn, leader of the Labour Party, the official opposition to the British government, drew a link between United Kingdom foreign policy and terror attacks as the main political parties resumed general election campaigning Friday, following the Manchester attack. The anti-terror force said the father had not been charged, but was taken in for questioning.
"We are furious. This is completely unacceptable", a government ministry source said of the images "leaked from inside the U.S. system".
"Many experts, including professionals in our intelligence and security services have pointed to the connections between wars we have been involved in or supported and and fought in other countries, such as Libya, and terrorism here at home", he said.
May, at the G7 summit, took exception.
Manchester Chief Constable Ian Hopkins said Abedi had not acted alone, adding it was "very clear that this is a network that we are investigating". "There can be no excuse for what happened in Manchester".
British police stopped sharing information about the suicide bombing with the United States, a British counter-terrorism source told Reuters earlier, after police chiefs said the leaks to media risked hindering their investigation.
The pictures, leaked to the New York Times, show the charred remains of a blue Karrimor rucksack alongside screws and nuts used as shrapnel.
The Five Eyes alliance is made up of Britain, the United States, Canada, Australia and New Zealand.