Latest from the fire brigadepublished at 10:36 British Summer Time
Crews from across the country have been mobilised to help tackle the fire and give local teams a rest, NYFRS says.
The blaze is now burning underground due to a deep-seated fire in the peat soil.
Ten appliances and a helicopter remain on the moor as efforts continue to bring the blaze under control.
There were no evacuations overnight, the fire service says.
A cause of the blaze is yet to be determined.
