An ammonia leak at a depot in Belvedere last night required assistance from the HART hazardous team at London Ambulance Service (LAS).

LAS HART tweeted: "We are currently on standby in Belvedere at a large depot with an ammonia leak."

A LAS spokesman said: "We were called at 23.20 to Norman Road, Belvedere to reports of a chemical leak.

"We sent a number of resources to the scene including an ambulance crew and our hazardous area response team.

"No patients were found at the scene."

Ammonia is a colourless gas which can cause poisoning.