Six fire engines were sent to deal with a vehicle fire in Mynydd Mechell, near Amlwch.
Crews were called to the village at around 9.30pm on Thursday night - and North Wales Fire and Rescue Service urged local residents to keep their windows and doors closed.
North Wales Police also urged the public to stay away from the area.
A Fire Services spokesperson said the blaze was brought successfully under control and crews left the scene shortly after 1.35am.
There are no further details.
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