Traffic gridlock on the M25 after two motorcycle crashes close motorway

Drivers face rush hour traffic chaos on the M25 after two sections of the motorway have shut following serious crashes.

Long tailbacks are snarling clockwise between junction J25 for Waltham Cross and J26 for Waltham Abbey.

National Highways confirmed part of the motorway will be closed for some time as police carry out an investigation.

Elsewhere, Dartford Crossing is closed in one direction because of a serious crash too and drivers have been warned of 90-minute delays.