Five people have been injured in a suspected explosion at a Tube station.
Witnesses described smelling burning rubber and seeing six-foot flames at the entrance to Southgate underground station in Enfield.
Police said the minor explosion, at about 1900 BST, was thought to have been caused by a battery short circuit.
Paramedics treated five people at the scene and took two to hospital. British Transport Police said the incident was not thought to be terror-related.
James Ayton, 34, from Southgate, was on the packed escalator when he saw a quick burst of flames at the top.
He said they were six foot plus and everyone legged it upon hearing a rapid whooshing sound.
The Tube had just unloaded. The escalator was full, he said.
A few people got trampled on on the escalator. There was screaming.
An old woman got trampled on. I had to carry a woman up the stairs. I think she was in shock to be honest. She couldn’t walk, shaking.
He said he saw a Tube worker pick something up that was on fire and extinguish it but added I think that was secondary rather than the cause.
Haluk Ozkan was about to get on a bus outside the station when he smelt something burning.
The finance worker, 26, who was with his partner at the time, said We were just outside the exit. We could smell a burning smell, like burning rubber.
We thought the bus engine had over-heated, he added.
We then saw people rushing to get out of the station. Not necessarily running or panicking, but moving quickly.
Then my partner saw a station staff member pointing a fire extinguisher at something and heard it go off, but we didn’t see what it was directed at.
A London Ambulance spokesperson said We were called today at 1902 BST to an incident at Station Parade, N14.
We have treated three patients at the scene for minor injuries and have taken two people to hospital.
Specialist officers said the cause of the explosion appeared to be a battery short circuit.
Enquires are ongoing to establish the full facts, a Met spokesman added.
Scotland Yard said officers remained at the scene along with colleagues from British Transport Police, London Fire Brigade and the London Ambulance Service.
Cordons are in place and the station is closed.
London Mayor Sadiq Khan said he was in touch with senior police officers.
News Source BBCNews