M4 reopens between Swansea and Llanelli after closure - BBC News
The M4 was closed in both directions to allow the air ambulance to land after a "serious incident".
The stretch of the M4 to Junction 49 Pont Abraham was closed following the crash

The M4 has reopened after a three-hour closure between Swansea and Llanelli.

There were several miles of queues between Pont Abraham in the west and Morriston in the east, after what South Wales Police called a "serious incident" at 11:30 BST.

An air ambulance landed on the westbound carriageway between junction 47 at Penllergaer and junction 48 at Hendy.

Traffic Wales said the motorway had fully reopened by 14:45.

Police had urged drivers to avoid the area and diversions were in place along the A48 through Pontarddulais and Penllergaer - with heavy congestion reported on alternative routes.

This Twitter post cannot be displayed in your browser. Please enable Javascript or try a different browser. View original content on Twitter The BBC is not responsible for the content of external sites. Skip twitter post by Adventure Travel This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’. The BBC is not responsible for the content of external sites.

The closure affected holiday traffic returning from west Wales and people travelling to the ferry ports of Milford Haven, Pembroke and Fishguard.

The Welsh Ambulance Service confirmed one air ambulance and four land vehicles were sent to help police with the incident.