Drivers should be aware of a number of problems on the roads this evening.

Delays in both directions near j21 for the M1 on the M25. Clockwise between j20 and j22 for London Colney due to a broken down vehicle, and anticlockwise approaching j21 with queues to get onto the M1.

Also slow on the M25 clockwise between j22 and j25.

Elsewhere in the area, slow approaching the London Colney roundabout on the A414 from Hatfield, on the A405 approaching the Park Street roundabout, and in Horseshoe Lane, Garston, due to emergency gas works.

A crash on the M11 southbound between j7 and j6 blocking one lane.

Long delays on the A406 approaching Arnos Grove (back to Colney Hatch Lane). Also busy on the A046 between Brent Cross and the A1.

Very busy in Wood Green to due to roadworks.