A double-decker London bus has smashed into a store building in south London causing multiple casualties, police say.

The incident took place on Thursday morning, as one of London’s symbolic red buses drove into a shop in Lavender Hill.

Footage from the crash showed a heavy presence of police and medical teams rushing to rescue the bus’ passengers.

It was not clear what caused the crash or how many people were injured.

The bus driver was taken to a nearby hospital following the smash. The driver told one of the nurses that he “blacked out” before the incident.

“He doesn’t remember hitting anything,” the nurse said. “The paramedic told me they think he had some kind of fit.”

here were at least the two women trapped on the upper deck, who were said to be “conscious and breathing.”

“Avoid Lavender Hill SW11. Bus has gone into a building. We have no further at this time,” tweeted Wandsworth Police, responding to the incident.

“Two fire engines and three fire rescue units are at the scene of a bus which has crashed into a shop in Lavender Hill in Battersea,” London Fire Bridge said on Twitter.