UPDATE: The road is now clear and has reopened.

POLICE and county show organisers are warning motorists to avoid the B4329 after a two-vehicle crash has blocked the road between Cross Lane and Poyston Cross.

Police are on scene directing traffic.

For updates see our live travel and traffic report.

Traffic was already heavy due to today being the final day of the Pembrokeshire County Show and the road closure will affect motorists travelling between Haverfordwest and Eglwyswrw on the mountain road.