A man was rushed to hospital after a building undergoing demolition collapsed in Welling this afternoon. 

Firefighters were called to scene at the junction of Central Avenue and Wickham street at around 1.20pm.

The empty property partially collapsed onto the highway, leaving scaffolding "in a precarious position", a spokesperson for the London Fire Brigade said.

Peter Chitty, 33, who witnessed the aftermath, said: "They’ve been demolishing that building from inside for a week or so.

"It looks like people were working on it today.

"I saw one of the workmen being carried out by his colleagues.

"There was an ambulance and a paramedic there, as well as fire engines and a police car.

"The wall has basically fallen out onto the pavement on one side of the street.

"My daughter goes to the school opposite, but luckily the playground is far enough away that the children wouldn't have been affected."

A single engine from Plumstead fire station was at the scene.