Bridgend County Borough Council has confirmed it has stopped using frozen minced beef supplied by Newport company Welsh Bros Foods.
It comes after a sample of frozen mince from Welsh Bros Foods reportedly tested positive for horsemeat.
“While to date no health issues have been identified within Bridgend County Borough, we have stopped using frozen mince beef provided by one supplier as a precautionary measure.
This follows tests carried out by a neighbouring authority on a random sample of meat from the same supplier which tested positive for the presence of horse DNA.
We are liaising closely with our partners in the Wales Purchasing Consortium and the Food Standards Agency in this matter and will be carrying out further tests.
Pembrokeshire and Cardiff Councils have confirmed they have withdrawn certain beef products from use in schools and care homes following the announcement.
Welsh Bros Foods says it is 'deeply shocked' at the reported find but believes it is an 'isolated incident'.
Approved supplier Welsh Bros Foods confirmed a sample of its frozen minced beef has 'potentially tested positive' for above 1% horsemeat.
The Welsh Government says it is working with the police to ensure allegations of horse meat at a plant in west Wales are dealt with.