A bus is on fire in following reports of a small "explosion" in Norbury.

The 109 bus went up on flames in London Road, near Norbury Avenue, at about 11.40am.

Thick smoke could be seen rising from the bus.

Witness Mia Burton, 46, whose husband runs the shop Der Ver Cycles in nearby Streatham High Road, said: "I was inside the shop and all you could see was smoke.

"The bus was on fire, about 100 yards away.

"The lady that was standing outside the shop said there was a small explosion and that is when the fire started. Perhaps it was the engine."

Your Local Guardian:

Police cordoned off the road following the fire (photo: Mia Barton)

At least two fire engines have been called to the bus and police have shut London Road in both directions.

Police said it was not thought anyone had been injured.