Traffic has been delayed after an accident involving two lorries at the Dartford Tunnel.

The crash happened on the anticlockwise carriageway of the M25 between Junction 1A for Swanscombe and Junction 31 for Lakeside.

The right hand tunnel is closed, while the left hand tunnel - which is smaller at only 4.8 meters high - remains open.

Congestion has been reported back to Junction 3 at the M20 Swanley interchange.

Read more: All the latest news from Dartford