BRITAIN is imminently facing another terror attack, Prime Minister Theresa May warned yesterday, as she deployed soldiers at key sites after a suicide bomber killed 22 people at a pop concert in Manchester.

May said the national terror threat level was being raised from severe to critical, which means another attack is expected “imminently”.

Her dramatic statement came after 22-year-old Salman Abedi, reportedly a Briton of Libyan descent, was identified as the perpetrator behind Monday’s deadly attack, whose victims included an eight-year-old girl.

“It is a possibility we cannot ignore that there is a wider group of individuals linked to this attack,” May said at her Downing Street office.

She announced that the army would be deployed on the streets to support armed police under a plan codenamed Operation Temperer, which was developed in the aftermath of the November 2015 Paris terror attacks.

“This means that armed police officers responsible for duties, such as guarding key sites, will be replaced by members of the armed forces, which will allow the police to significantly increase the number of armed officers on patrol in key locations.

“You might also see military personnel deployed at certain events such as concerts and sports matches, helping the police to keep the public safe,” she said.

Started in 2006, the terror threat level is set by a unit based in the MI5 domestic security service.

“Critical” is the highest of five levels and has only been briefly reached twice before and “means an attack is expected imminently”.

Police named Abedi as the suspected suicide bomber, as the Islamic State jihadist group claimed responsibility for the carnage.

British media said he was born in Manchester, northwest England, and that his Libyan parents had fled the regime of dictator Muammar Gaddafi.

Monday’s attack came just over two weeks before Britain votes in a general election and is the latest in a series of deadly incidents across Europe. 

Earlier attacks, including vehicle-borne assaults in Berlin and Stockholm, have coincided with an offensive on IS redoubts in Syria and Iraq by US, British and other Western forces. 

Threatening more attacks, IS said in a statement published on its social media channels: “One of the caliphate’s soldiers placed bombs among the crowds”.

The suicide bombing came at the conclusion of US pop star Ariana Grande’s concert at the 21,000-capacity Manchester Arena, one of Europe’s largest indoor venues.

Witnesses described the horror when the bomber blew himself up.

“When we left, down the stairs there was probably early teenagers lying on the floor covered in blood and blood on the walls where they’d been laid, so it was just horrifying,” concert-goer Alex Grayson told AFP. 

Police staged an armed raid on a Manchester address believed to be where Abedi lived, carrying out a controlled explosion to gain entry after arresting a 23-year-old man earlier in connection with the attack.

Police promised extra measures at showpiece events coming up such as Saturday’s FA Cup football final.

Campaigning for the June 8 election was suspended by the main parties after the attack and May insisted the country stood tall as defiant chants of “Manchester! Manchester!” broke out at a vigil held in the city centre. – AFP, May 24, 2017.