A487 near Aberystwyth closed as four hurt in road crash
Four people have been injured in a road traffic collision which has blocked the A487 in Ceredigion.
The accident involving two vehicles and a caravan happened between Llanrhystud and Aberystwyth at around 1400 BST on Tuesday and police were still at the scene at 2100 BST.
Two of the injured were flown by helicopter to Bronglais Hospital and are said to be seriously ill.
Two others were taken to the West Wales General Hospital in Carmarthen.
They are said to be in a less serious condition.
Dyfed-Powys Police said the road is closed and is likely to remain so for some time while investigations continue.
Officers are appealing for witnesses to contact them at Aberystwyth police station by dialling 101.