Residents have been ordered to evacuate in California’s San Bernardino County after a wildfire that was thought to have been largely contained flared up.

The San Bernardino County Sheriff’s Department told residents of Seven Oaks to leave the community ahead of a surge in the Line Fire on Sunday afternoon.

The department also issued warnings of possible evacuations for Angelus Oaks and the Boulder Bay area along Big Bear Lake.

As of Sunday, the Line Fire was spread over 62.6 square miles, with 83% of the fire contained and 1,176 personnel assigned to fight the blaze, according to a San Bernardino National Forest social media post.

A California man pleaded not guilty on September 17 to starting a fire that authorities said became the Line Fire. Justin Wayne Halstenberg, 34, of Norco, California, was charged with 11 arson-related crimes, according to court records.

Authorities said Halstenberg’s vehicle was tied to areas where three fires were started on September 5, including one that grew into the Line Fire that has threatened more than 65,000 homes and injured four firefighters.