MOTORISTS are being warned of delays that could last longer than half an hour on the M1 this morning.

An earlier accident around Junction 37 Northbound has caused major queues on the carriageway between Junctions 37 and 39.

The Highways Agency has warned that although the accident has now been cleared, the long queues that have built up will mean delays of over half an hour.

It is not expected to fully clear until after 9am.