Motorists face severe delays on the M1 this morning after a multi-vehicle crash.

One lane is closed and traffic is queuing on the M1 southbound past Junction 5 (Watford, A41) due to a serious crash.

A motorcycle, a lorry and up to ten cars were involved.

Emergency services are at the scene recovering the vehicles involved and congestion is all the way back to Junction 6a for the M25.