A fuel tanker crash on a country road in South Pembrokeshire put agencies on a water contamination alert last week.

The tanker, carrying 12,300 litres of white diesel, overturned in a ditch on the narrow road between Princes Gate and Cold Blow on Wednesday morning.

Around 800 litres of the fuel spilled, with the majority running into a tributary of Narberth Brook. Environment Agency Wales officials were called to monitor the clean-up operation, set up an incident room.

Protective booms were put in place on the tributory and Dwr Cymru Welsh Water temporarily shut down drinking water pumps at Bolton Hill pumping station, using the Crow Hill station instead.

A spokesman for Welsh Water emphasised there had been no adverse effect on any drinking water quality.

"But as an extra safeguard, a treatment process has been installed at Bolton Hill," she added.

The accident, at 8.15am on Wednesday, led to the B4315 road between Princes Gate and Cold Blow being closed to traffic until late in the afternoon.

The driver of the tanker, which was owned by K. P. Thomas and Sons, was able to free himself from the cab. He suffered minor injuries and was treated at Withybush Hospital.

Firefighters from Narberth and Whitland, as well as the emergency tender from Haverfordwest and Milford Haven's foam pod appliance, attended the scene.