Part of the Heads of the Valleys Road has been closed after a serious accident involving two cars.
It happened on the A465 Heads Of The Valleys Road Westbound near B4276 Merthyr Road (Llwydcoed / Baverstocks).
The road is closed for recovery.
One of the cars has gone up a bank.
This is a separate incident from another accident on the same route within a mile of each other.