Concrete thrown off motorway bridge onto van

The "nasty" incident happened near junction 23 on the M5 northbound

An investigation has been launched after concrete was thrown off a motorway and smashed a van's roof.

Avon and Somerset Police said an unknown man threw the concrete onto the northbound carriageway of the M5, near junction 23 for Dunball, at about 05:30 BST on 17 July.

The van's roof was damaged but nobody was injured, police said.

Anybody with information or dashcam footage which can help with the investigation is asked to contact the force.

“This was a really nasty incident and it is very lucky nobody was seriously injured or worse," PC Tom Curry said.

“We are keen to hear from anyone who was driving along the motorway or on the A39, which crosses over it, at that time and either saw somebody acting suspiciously on the bridge, or may have relevant dashcam footage," he added.