He lived in Morocco for much of his life but made short visits to his mother.At the time of the attack, Zaghba was working in a London restaurant, Italian media said.

Australian woman Kirsty Boden was among the seven killed. "The attack, the third in Britain in three months, has raised questions over the government's ability to protect Britain following cuts to police numbers in recent years".

Reuters/Hannah McKayISIS has claimed the attack on London Bridge last Saturday. Photo by Reuters/Hannah McKay.

Khuram Shazad Butt, known as Abu Zaitun or "Abs", was on the radar of counter-terrorism investigators before carrying out the attack but was deemed as a "low priority", the Associated Press and the British Times report.

British police on Tuesday named the third participant in the London attack as 22-year-old Youssef Zaghba from east London, describing him as an Italian national of Moroccan descent.

Every one of the 12 people arrested in east London in the wake of the murderous rampage was released without charge.

The death toll from the London Bridge attack has risen to eight as pressure on British authorities intensified amid new questions about how the terrorists slipped through the net. But some neighbours in Barking s said he seemed "a sociable, friendly guy". "He would always bring his kid out into the lobby". One of the dead attackers has been pictured wearing an Arsenal shirt.

A third man arrested for carrying out Saturday's deadly attack in central London is an Italian-Moroccan who was arrested previous year on suspicion of trying to reach Syria, according to Italian media reports. "He was definitely religiously observant, but seemingly no more than anyone else", the former colleague said.

But police said that they had no warning of a plot and that their investigation of Butt had been shelved.

People gather in Potters Field Park during an event for the victims of Saturday nights attacks, London, June 5, 2017.

But the premier has faced criticism for her record on security in the six years she served as Britain's interior minister before becoming prime minister last year. We have had three horrific attacks and we have foiled five others.

Butt appeared in a Channel 4 documentary called The Jihadis Next Door previous year. "We have had to close police stations, sell police buildings, and we've lost thousands of police staff", said Khan, a member of the Labour Party.

Opposition leader Jeremy Corbyn, when asked by ITV television if he backed calls for May to resign, said: 'Indeed I would'. The Home Secretary is responsible for the internal affairs in the United Kingdom, including policing. He was not known to the police authorities. "'What happened, how could he possibly be on a Channel 4 program and be committing atrocities like this?'" said foreign secretary Boris Johnson on Tuesday, speaking two days before a tight parliamentary election in which national security is expected to dominate the agenda.

Christine Archibald, 30, a Canadian social worker who moved to Europe to be with her fiancé, was the first victim to be named.

"I'm not blaming anybody", Amato said. Addressing the attackers, he said: "We will defeat you".

His mother said her son used to show her videos of Syria and wanted to go "because it was a place where you could live according to a pure Islam".

PRESSURE was mounting on the Government and the security services last night following claims that Italian authorities had warned the United Kingdom about the third London Bridge attacker.