Man sought after passenger 'pushed under' train at Kentish Town
Police have released images of a man wanted after a passenger was badly injured when he was reportedly pushed into the path of a Tube train.
British Transport Police (BTP) said the commuter was struck at about 11:45 GMT at Kentish Town station in north London.
Detectives said they are treating the incident as attempted murder.
The suspect boarded a Tube heading for High Barnet after the incident, BTP said.
Det Supt Gary Richardson said: "We have received reports from witnesses that the man was pushed in front of a train and we are currently treating this as an attempted murder.
"We are now issuing images of a man we want to speak to in connection with the incident and appealing for any witnesses to come forward.
"He was at the station at the time and we believe he will be able to help our inquiries.
"After the incident, the man pictured ran to the northbound platform where he boarded a tube in the direction of High Barnet."
The man being sought in connection with the incident has been described by police as "aged 20 to 30, around 5ft 11, stocky build, with short hair".
Following the incident, witness Verity Slattery said: "I feel physically sick... in utter shock and disbelief. I just hope the guy will be OK.
"Thoughts and prayers are with him and his family."
Jade Bowyer, who was on the train, tweeted: "Driver on tannoy sounded v[ery] panicked as they kept us on board until evacuating."
Earlier London Ambulance Service said: "We treated a man at the scene and took him as a priority to a hospital in central London, with a doctor from the air ambulance on board."