National Highways report delays on the M1 following a 'police-led' incident.
Traffic was stopped on the M1 northbound between J14 and J15 near Newport Pagnell due to a Police Led Incident at around 6pm this evening.
Lanes 2,3 and 4 are now open, with lane 1 remaining closed.
National Highways say there are delays of around 20 minutes.