Essex Police have closed the A12 following reports of a serious collision.

The announcement was made by National Highways at 11.18pm on Wednesday, with some motorists saying on social media they have not moved on the road for close to an hour.

The incident is unfolding on the southbound carriageway between junction 22 and junction 21 near Witham.

Essex Highways has also confirmed the incident on its live traffic map.

The Gazette has contacted Essex Police requesting further details about the incident.