River Teifi pollution 'difficult to investigate'
An investigation has been launched into a river pollution incident in Ceredigion.
Waste, understood to be from an anaerobic digestion plant, has been released into a stream which enters the River Teifi in Lampeter.
Natural Resources Wales (NRW) said the pollution has been stopped at source, but a "large amount has already gone into the river".
Sue Byrne from NRW said high river levels made is "difficult to investigate".
