Emergency services are currently dealing with a crash between Twyn Road and Caerphilly Road. Gwent Police confirmed that diversions are currently in place which may cause heavier traffic than usual, and drivers are being warned to avoid the area. A spokesperson for Gwent Police said: "Emergency services are dealing with a road traffic collision between Twyn Road and Caerphilly Road in Ystrad Mynach. "Diversions are in place which may cause congestion. ⚠️🚧 Road closed 🚧⚠️🚨 Emergency services are dealing with a road traffic collision between Twyn Road and Caerphilly Road, Ystrad Mynach 🚨Diversions are in place which may cause congestion.