At least four people have died after a crash involving several vehicles, including a lorry, on the M5 in Gloucestershire.

The crash happened on the southbound carriageway, several miles north of Bristol between junction 15 for Almondsbury and junction 14 for Falfield.

Images on social media showed a lorry which had gone headfirst into a ditch at the side of the motorway, while other images also showed damage to the central reservation.

The motorway is closed in both directions between junctions 16 and 14 while the emergency services work at the scene.

Avon and Somerset Police advised that the road is likely to remain closed for a "considerable amount of time", while Highways England said there were around six miles of traffic tailbacks.