An off-duty police officer who rushed to the scene of the London Bridge terror attack was stabbed after tackling one of the terrorists.
The officer is now in in a critical condition from knife injuries, the BBC reports.
London police officers have been praised by the public and officials for their brave and selfless acts during last night's attack, which saw three men kill seven and injure dozens more before being shot dead.
Metropolitan Police Commissioner Cressida Dick said in a statement: "In the early hours of this morning, I have visited one of the hospitals where the injured are being treated.
Armed police at the Shard earlier today. Credit: PA
"There, I heard truly remarkable stories of extraordinary brave actions by officers - on and off duty - who were first on the scene. I also heard of colleagues from other emergency services and members of the public who ran towards the danger as this incident unfolded.
"Many, many people risked their own safety to help others and to treat those seriously injured and indeed to confront the suspects involved."
Prime Minister Theresa May praised the police for their 'great courage and great speed' when dealing with the incident.
A second heroic officer, from the British Transport Police, sustained injuries to his face and leg when he confronted the attackers, reports the BBC.
He is recovering in hospital, where he is reported to be in a stable condition.
Chief Constable Paul Crowther from the British Transport Police said: "Although he is seriously unwell, he was able to recount how he faced the attackers armed only with his baton, outside London Bridge station.
"For an officer who only joined us less than two years ago, the bravery he showed was outstanding and makes me extremely proud.
"All of us at BTP wish him a swift recovery, and I know he will be touched by the hundreds of messages of support from across the UK and the world.
"Our thoughts are with all of those who died or were injured, and their loved ones as they try to come to terms with what happened."
Featured Image Credit: PA