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A driver that crashed into a power pole in the Santiago Canyon area, sparking a brush fire Thursday morning, is suspected of driving under the influence, authorities said.

The crash occurred shortly before 4 a.m. on East Santiago Canyon Road near the 241 Freeway, the Orange County Fire Authority tweeted.

Video from the scene showed that the car had crashed into a power pole.

Investigators believe the car, not the power pole, then started the brush fire.

The driver, identified only as a 26-year-old man, suffered a broken collar bone and was taken to a local hospital, a California Highway Patrol spokesperson told KTLA.

He was arrested on suspicion of DUI, the spokesperson said.

The fire burned about 5 acres of brush, prompting a hard closure of Santiago Canyon Road from the 241 Freeway to Loma Ridge, the Fire Authority stated. Live Oak Canyon to the 241 Freeway was closed to non-residents.

No structures were being threatened. “At this point, crews are making good work on the fire,” Fire Authority Capt. Paul Holaday said.

A combination of ground crews and night dropping helicopters were being utilized in the firefight.

Crews were  “anticipating containment sometime early today,” Holaday said.