A pedestrian has died after being struck by a vehicle on the M5 in the early hours of Saturday, leading to its closure, police have said.

The person was on the carriageway “for reasons yet to be established” when they were fatally injured between junction 3 and 4 in Worcestershire, said West Mercia police.

The motorway has been closed in both directions between junctions 3 and 4 at Frankley Services and will remain shut for some time, officers said.

The force said in a statement: “We’re currently dealing with a serious collision on the M5 between J3&4, near Frankley Services. Diversions are in place, motorists are advised to use an alternative route.

“Both north and southbound are affected, traffic on the motorway is being directed through the services. Delays are expected. If you can, use a different route.

“We’re working to get the road fully open as quickly as possible however anticipate it will remain closed until later this morning.”