All trapped traffic has been cleared after the closure of the M1 at J34.
M1 northbound remains closed at J34 as an investigation takes place.
READ MORE: LIVE: M1 southbound lane reopens after serious multi-vehicle crash - traffic updates
South Yorkshire police said there has been a ‘serious road traffic collision’.
M1 southbound lane has re-opened
READ MORE: LIVE: M1 CLOSED both ways after serious multi-vehicle crash - traffic updates
The northbound carriageway is expected to re-open at 4pm.
Emergency services received reports of an accident at around 8.20am this morning (Friday June 7).
Traffic is being diverted to J35
Bus services are facing major delays across South Yorkshire