Three people have been left with minor injuries after an electrical fire broke out on a train in east London.
The blaze occurred on the Overground train at Dalston Kingsland during morning rush hour, causing chaos as the station was evacuated.
The London Fire Brigade confirmed three people were left walking wounded following the incident caused by a workman's drill overheating and starting smoking. Firefighters extinguished the battery and placed it in a bucket of sand.
The station was evacuated following the small fire and passengers are being warned to avoid the station.
Transport for London (TfL) said that there are severe delays between Richmond and Stratford and Clapham Junction to Willesden Junction due to the incident.
A London Ambulance Service spokesperson said: "We were called at 7:36am today to reports of an incident at Dalston Kingsland railway station, E8.
"We sent four ambulance crews, a single responder in a car, an incident response officer and our Hazardous Area Response Team (HART) to the scene.
"We treated four patients for minor injuries, including head, leg and arm injuries, and took them to a hospital in east London. We also checked over three patients at the scene but they did not need hospital treatment."
A British Transport Police spokesperson added: "We were called at 7.10am today to Dalston Kingsland to reports of smoke on a train.
"Several passengers left the train as a result of the smoke. Fire service also attended and established that a workman's drill had overheated and was smoking.
"A number of people have sustained minor injuries and were treated by the ambulance service at the scene. This incident is not being treated as suspicious at this time."