A disposable barbecue is believed to have started a large forest fire in Dorset.
About 60 firefighters spent more than four hours putting out the blaze, which broke out in Puddletown Forest at about 16:30 BST on Sunday.
A fire service Twitter account, which showed a burnt-out disposable barbecue at the scene, said: "We cannot stress enough how irresponsible this is."
Crews were due to return to the area to check for hotspots.
Dorset and Wiltshire Fire and Rescue Service said it was "a completely avoidable wild fire".
It urged people to "follow government guidance and only go outdoors when necessary", which it said would help prevent such "damaging, resource-intensive fires".