Fire crews were dispatched to a dairy farm in Weld County on Wednesday evening for a "confined space rescue," the Southeast Weld Fire District said.

KEENESBURG, Colo. (AP) — Rescuers have recovered six bodies from a dairy on the Colorado plains, authorities said Thursday, but they didn’t immediately say what led to the deaths. Rescue crews entered a confined space at the dairy Wednesday and recovered the bodies, the Southeast Weld Fire Protection District said.

More than 200 personnel are battling a wildfire fire burning in the hills east of Calistoga that has swelled to 1,200 acres and has prompted evacuations Thursday evening, fire officials said.