Police surrounded a Woolwich petrol station this evening after a man doused himself in petrol and threatened to set himself alight, witnesses say.

The incident reportedly happened at a petrol station in Artillery Place at around 7.30pm.

One witness claimed the man told police: "Shoot me, dog."

The Met Police helicopter was also called in and the road was sealed off as the stand-off continued.

A man was later arrested at the scene.

More to follow.