More than 70 firefighters were involved in tackling a gorse fire in Co Londonderry on Saturday.
The blaze took hold close to the Glenshane Road over the Sperrin Mountains near Maghera.
Police advised motorists to avoid the area while firefighters work to bring it under control.
At the height of the operation, 10 fire appliances and 75 firefighters were deployed to the scene.
The response was being scaled back by Saturday evening.
Firefighters have already dealt with around 350 wildfires across Northern Ireland in just over a week.
Those included a significant blaze in the Mourne Mountains in Co Down last weekend which sparked a major incident and saw people evacuated from their homes.
Many of the fires are believed to have been started deliberately.
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