Two people have died and two others have sustained injuries in a crash between Aberdare and Merthyr Tydfil on Thursday afternoon.
South Wales Fire and Rescue said it happened on the A4059 road at about 3pm.
Two males were pronounced dead at the scene. A third man was taken to hospital by air ambulance.
A five-year-old child was taken to hospital by ambulance but is understood to have suffered only minor injuries.
The road was closed until about 8.20pm Thursday evening.