A dairy company has expressed regret for "discolored discharge" it has discharged into a river.
According to First Milk, the discharge was released into the Pembrokeshire river for two hours on Saturday.
Following worries expressed last month that the river was facing an "ecological disaster," the incident has occurred.
The discharge was attributed to "short-term operational" difficulties and heavy rain by the company.
It claimed that the incident had been reported to Natural Resources Wales (NRW) and that it was upgrading the filtration system at its Haverfordwest creamery.
It comes after a video in June that campaigners claimed was from a First Milk discharge pipe showed colored liquid being released into the Western Cleddau and a thick residue on the riverbank.
First Milk stated at the time that although "discolored discharge" had been released for a brief period of time, it stayed within NRW's guidelines.