NANTUCKET, Mass. (AP) – A “controlled burn” got out of control on Nantucket island and burned about 30 acres of land Sunday, officials said.

The Nantucket Conservation Foundation conducted the burn at 10 a.m., but the wind picked up and spread the fire, officials said. Controlled burns are designed to prevent flash brush fires by killing off underbrush.

“It usually lessens the fire danger,” said John Farrington, fire chief of Centerville, Osterville, Marstons Mills in Barnstable County. “They’ve been doing that for years over here. They’re not inexperienced.”

About 30 acres burned in the Altar Rock section of the island, said Farrington, who arrived with other mainland crews to assist. He did not know the intended size of the controlled burn. No homes were damaged, and there are no injuries, Farrington said.

A ferry left from Hyannis to bring two pumper trucks and two “brush breaker” trucks to Nantucket at about 2:30 p.m., Farrington said.

Crews remained at the scene late Sunday afternoon to watch for hot spots.