Going to be a long one M45 closed as well.
Northamptonshire, southbound between A5 [M1 junction 18] and A45 [M1 junction 16]
M1 Northamptonshire - M1 closed and queueing traffic southbound between J18, A5 (Rugby) and J16, A45 (Daventry), because of an accident involving a van and a car. Matrix sign set to 40 mph.
Updated 8 minutes ago