Two heath fires in a part of Dorset may have been ignited by smouldering peat.
Crews were called to deal with about 150m (492ft) of gorse and heathland which was alight in Sandford Woods, Sandford, from 2120 BST on Wednesday.
The first fire took about an hour to extinguish. Crews were called out again to tackle another smaller fire in the same area shortly before 1000 BST.
The fire service said nobody was hurt. Peat, which has a high carbon content, can burn under low moisture conditions.