Fire crews are battling a major fire at a waste recycling site outside Londonderry.
Five hundred tonnes of rubbish is on fire at City Waste Industrial on the Mobuoy Road. The road has been closed.
The fire was discovered shortly before 0600 BST on Tuesday. There was a major blaze at the same site in March.
The Northern Ireland Fire and Rescue Service has advised people who live in the area to keep windows closed because of the amount of smoke being generated.