Emergency services are at the scene of the incident.
Highways England said at 2:23 pm:
‘The M1 in BOTH directions J21a to J21 is currently CLOSED due to a serious collision compromising both carriageways. Traffic Officers and emergency servicesare on their way to the area.
‘Congestion building on the approach.
‘M1 in Leicestershire is going to be very busy due to a full closure in both directions.
‘SOUTHBOUND is closed J22 to J21 including J21A, and NORTHBOUND is closed J21 to J21A.
‘Please avoid using the M1 in Leicestershire if possible and expect delays.’