Drivers are being advised to avoid the A470 this afternoon following a vehicle fire between Abercynon and Pontypridd.
South Wales Police confirmed they are currently at the scene on the southbound carriageway. While the road remains open, heavy congestion has built up in the area.
Traffic is backing up as emergency services deal with the incident, and motorists are urged to seek alternative routes where possible.
Police have thanked drivers for their patience while the situation is being managed.
