POLICE have reported there is heavy traffic building in Johnston this evening following a crash.

Traffic is queuing near the roundabout on the A4076 leading through Johnston this evening (May 10) following a crash.

The multiple vehicle crash is believed to be on the Milford Haven side of Johnston.

Dyfed-Powys Police warned drivers about the collision on Twitter, saying: "A4076 near the roundabout in Johnston due to RTC - significant congestion from both directions."

An eyewitness has said four ambulances were earlier seen seen passing traffic queues on the A4076.

Welsh Ambulance Service has said the incident is still ongoing, having received the callout at 4.55pm.

Another eyewitness said: "Looks like a minimum of two cars, and police are directing traffic.

"There's at least one person on a stretcher, other people who looked to have been involved are sat in the grass alongside the damaged vehicles."

"There are long queues both sides.; the road's open but crawling."

For more travel updates, see the Western Telegraph traffic report.