Fugitive former police officer Christopher Dorner allegedly shot and wounded at least two San Bernardino County sheriff's deputies during a shootout with authorities in the Big Bear area Tuesday afternoon, sources said.

Dozens of law enforcement officers were racing to the last reported scene of a gun battle near the 7 Oaks cabin area near Big Bear.

“There are deputies everywhere on the ground and on foot," said Cindy Bachman, a San Bernardino County sheriff's spokeswoman.

PHOTOS: Manhunt for ex-LAPD officer

The shooting occurred after Dorner burglarized a home, tied up a couple and stole a white pickup truck, sources said. San Bernardino County sheriff's spokeswoman Jodi Miller confirmed deputies responded to a vehicle theft about 12:20 p.m., and the resident who reported the theft said the suspect matched Dorner's description.

The U.S. Forest Service confirms there was an exchange of gunfire between officers on foot and the suspect, in the Santa Ana River drainage, north of State Highway 38 and south of Big Bear Valley. At least one officer of the California Department of Fish and Wildlife was involved, said John Miller, San Bernardino National Forest spokesman. That officer is not believed to be injured.

Dorner's status was not immediately known as the gunfight continued.

DOCUMENT: Read the manifesto

Officers have crisscrossed California for days pursuing the more than 1,000 tips that poured in about Dorner's possible whereabouts — including efforts in Tijuana, Mexico, San Diego County and Big Bear — and serving warrants at homes in Las Vegas and Point Loma.

Statewide alerts were issued in California and Nevada, and border authorities were alerted. The Transportation Security Administration also had issued an alert urging pilots and other aircraft operators to keep an eye out for Dorner.

The search turned to Big Bear last week after Dorner's burning truck was found on a local forest road.

TIMELINE: Manhunt for ex-LAPD officer

At the search's height, more than 200 officers scoured the mountain, conducting cabin-by-cabin checks. It was scaled back Sunday — about 30 officers were out in the field Tuesday, the San Bernardino County Sheriff's Department said.