Three buses in 3 days have burst into flames, first week into November.
Another bus caught alight in London yesterday, the third bus to burst into flames in a week. Passengers were evacuated from the 152 service after it caught alight in south west London at 12.30pm. London Fire Brigade said it was called to Western Road, Mitcham, to reports of a bus alight.
Firefighters dealt with the blaze quickly and it was out by 12.54pm, a spokeswoman said.
"London Fire Brigade said it was called to Western Road in Mitcham at 12:26 GMT to reports of a vehicle fire. No passengers required treatment and the fire was out by 13:00."
Transport for London (TfL) said the three fires were "isolated" and there would be a "full investigation".
Two of the fires involved buses operated by Abellio which said there were "two separate causes for fire".
In its statement it said: "We are investigating further to isolate the root causes."
On 3 November, a bus caught fire after colliding with a car in Barnet, north London.
Ken Davidson, TfL's head of bus operations, said: "The fire (yesterday) was contained within the engine compartment and there was minor damage to the bus... there were no reported injuries."
He said the fires involving Abellio vehicles were due to "technical faults" and added that TfL operated a fleet of 8,700 buses