Long traffic delays are expected around Potters Bar following a crash on the M25 near Waltham Cross.

A multi-vehicle accident by Holmesdale Tunnel has caused approximately 5.5 miles of congestion with traffic going back to Junction 24 for Potters Bar.

Between junctions 25 to 26, lanes 4 and 3 have been closed following the crash.

This is likely to add around 45 minutes onto normal travel times in the area,