All Scottish schools have been told not to serve frozen beef burgers after one was found to contain traces of horse DNA.
Local authorities were advised to "place a hold" on the use of the products following the discovery in a burger at a North Lanarkshire school kitchen.
The measure also applies to council leisure facilities and some social care establishments.
Meanwhile, councils across the country were advised to take frozen beef burgers off the menu as a precautionary measure.
Scotland's Rural Affairs Secretary, Richard Lochhead, said it was "really unacceptable that any school child in Scotland should be eating a burger which has got horse meat in it".