Published Monday, 16 January 2012
Thousands of tyres have been destroyed in the fire on the Newry Road, near Mayobridge.
It broke out on Sunday evening - the operation to bring it under control has continued through the night.
The cause of the blaze is not yet known.
A statement from the PSNI said: "Police and NI Fire and Rescue Service continue to attend a report of a fire at business premises this morning.
"At this stage, it is unclear as to the cause of the fire."
Officers have asked anyone with information to pass it on.