All lanes reopened on M1 near Northampton after road traffic collision

All lanes have been reopened on the M1 southbound between Northampton and Milton Keynes following a road traffic collision.

Two lanes had to be closed following the collision.

There are currently reports of queuing traffic for six miles and travel time is estimated to be around 25 minutes.

Highways England reports that traffic is expected to return to normal at around 4pm.

More to follow.