ALSO READLondon tube attack: IS claims responsibility, terror alert level 'critical' London attack: Why terror threat level downgraded to severe from critical Terror visits the UK again: 7 killed in London attack, 3 suspects shot dead 8 minutes on London Bridge: Years of training led to prompt police response Several hurt in 'terror incident' on London underground train
The UK police on Saturday launched a major manhunt for the suspects who tried to blow up a packed Tube train in London, an attack claimed by the Islamic State terror group. An improvised explosive device (IED) exploded at Parsons Green station on Friday, injuring 29 people. The UK's terror threat level was raised to the highest. Metropolitan Police Assistant Commissioner Mark Rowley said police were "chasing down suspects" and hundreds of officers were trawling through CCTV. He said support from the military would free up about 1,000 extra armed police officers, largely from the Civil Nuclear Constabulary and Ministry of Defence police. Detectives used CCTV images from the station and train to single out the suspect believed to have planted the homemade device but were still working to identify the bomber. The Islamic State militant group claimed the responsibility for the attack. Nobody suffered life-threatening injuries in the incident. Parsons Green station has since reopened. Raising the terror status to its highest level, which means another attack is considered imminent, Prime Minister Theresa May said military personnel would replace armed police "on guard duties at certain protected sites which are not accessible to the public". It is the fourth time the terror threat level has been raised to critical in the last 11 years - most recently after the Manchester Arena bombing. "The public will see more armed police on the transport network and on our streets, providing extra protection.
This is a proportionate and sensible step which will provide extra reassurance and protection while the investigation progresses," she said.Investigators fear the bomb had the potential to cause huge devastation if fully detonated. A former army bomb disposal officer said it appeared the initiating charge of the device had exploded but had failed to detonate the main charge, the Guardian reported. Initially, police considered the possibility that the bomber had been among those taken to the hospital, where many were treated for flash burns. However investigators believe the device was remotely detonated, which suggested it may not have been intended as a suicide attack, and that the bomber may have left the train before the explosion, the paper said. Counter-terror police are being assisted by MI5 in their hunt for the bomber. It is the fourth time the terror threat level has been raised to critical in the last 11 years - most recently after the Manchester Arena bombing. The Mayor of London, Sadiq Khan, said: "The national threat level has now been raised to critical after the evil and cowardly terrorist attack at Parsons Green. "As the Prime Minister has said, this is our highest level of security preparedness. "I utterly condemn the hideous individuals who target innocent people and attempt to use terror to harm us and destroy our way of life," he said. Yesterday 's attack was the fifth terrorism incident in the UK this year. But it's the only one in 2017 in which nobody has died. The previous four saw 36 people killed.