United Kingdom school confirms student, 15, killed in Manchester blast

Salman Abedi, 22, was named the attacker and officials believe he acted alone.

Ian Hopkins, chief constable of the force, said the bombing on Monday is part of a network which police are now investigating.

Her husband was critically injured in the attack and is now in hospital.

A further 59 people, including children, were injured and taken to hospital.

She raised the country's terror alert to the highest level for the first time in a decade.

Police said three men were arrested Wednesday in south Manchester, where a day earlier a 23-year-old man was also arrested and a number of homes were searched.

Abedi had been known to security services, British Home Secretary Amber Rudd said, though she would not be drawn on the way he came to their attention.

The new developments comes as the terror threat level in England is now at it's highest lever after being raised to "critical" with warnings that another attack may be imminent.

British-born Abedi, 22, blew himself up on Monday night at the Manchester Arena indoor venue at the end of a concert by US pop singer Ariana Grande, attended by thousands of children and teenagers.

"The attack was the deadliest since July 7, 2005 when four suicide bombers inspired by Al Qaeda attacked London's transport system killing 52 and injuring 700 others", it reported.

Police also carried out raids in the south Manchester area of Fallowfield where Abedi lived.

The meeting, bringing together senior ministers, officials, police and security agencies, will be the fourth Cobra gathering to deal with the Manchester bombing.

Police officers stand next to floral tributes left for the victims of an attack on concert goers at Manchester Arena, in St Ann's Square, in Manchester, Britain May 24, 2017.

ISIS said on its Telegram channel Tuesday that a "soldier of the caliphate" was able to "plant explosive devices" at the arena, a United States counterterrorism source told CNN. Ms Rudd said that 984 military personnel have been deployed.

"It is operationally driven, it is intelligence-driven and we must make sure that we allow our counter-terrorist police, our police and our intelligence services to get on and do their job and this helps give them the space to do just that".

The leader said it is not appropriate to move the threat up and down while there are attacks on European Union nations.

Minister Gerard Collomb said Wednesday on BFM television that British and French intelligence have information that Abedi had been to Syria.

However, the French minister said it was unclear whether the attacker was part of a larger network of extremists planning attacks.

Charlotte Campbell said they had spoken at about 8:30pm, two hours before the blast, adding: "She'd just seen the support act and said she was having an wonderful time and thanking me for letting her go".

"In any case, the links with Daesh are proven", he said, using a term for the Islamic State group.

Jon Rouse of the Greater Manchester Health and Social Care Partnership said there were 20 people still in "critical care" across Manchester by Wednesday at 8.30am, whose "horrific injuries" include major organ damage and potential loss of limbs.

A cafe owner who spoke to CNN said that the city's sense of community was helping people come together during the hard time.

  • Leroy Wright