UPDATE 7 p.m.
LOS ANGELES (AP) — A law enforcement official tells The Associated Press that the man believed to be fugitive ex-cop Christopher Dorner never came out of a California mountain cabin engulfed in flames.
The person who requested anonymity because of the ongoing investigation said a single gunshot apparently fired inside the cabin was heard just before the fire broke out Tuesday.
Officials were waiting for the fire to burn out before approaching the ruins to search for a body.
Authorities believe Dorner barricaded himself in the cabin after exchanging gunfire with deputies, killing one and wounding another.
UPDATE 6 p.m.
Television coverage shows flames and smoke coming from a cabin where officials believe a fugitive ex-Los Angeles police officer holed up.
Officials say one of two deputies who exchanged fire with the suspect from the cabin has died. Both deputies were airlifted to a hospital. Officials say the second deputy required surgery but is expected to survive.
The two deputies had responded to a report of a stolen vehicle. The cabin is in the San Bernardino Mountains, not far from where Christopher Dorner's burned-out pickup was located. Officers had been swarming the snow-covered Big Bear region since Thursday, when they found the pickup.
The former Navy reservist is accused of killing a former police captain's daughter and her fiancé and a suburban Los Angeles officer. He had said in an online manifesto that he would bring "warfare" to Los Angeles police and their family members. Dorner claimed in the rambling statement that he was wrongfully fired for reporting the abuse of an arrested man.
UPDATE 3:30 p.m.
BIG BEAR LAKE, Calif. (AP) -- Authorities say a fugitive ex-Los Angeles police officer is barricaded in a cabin in the Southern California mountains.
Someone in the Big Bear Lake area reported a stolen vehicle Tuesday and described the suspect as looking very similar to Christopher Dorner.
The vehicle was found and the person ran into the forest and barricaded himself inside a cabin.
Authorities say a short time later there was an exchange of gunfire between law enforcement and the suspect.
Two law enforcement officers are being airlifted to a local hospital with unknown injuries.
UPDATE 3:06 p.m.
LOS ANGELES (AP) -- Two law officers have reportedly been wounded in a gunfight in the mountains east of Los Angeles with a person believed to be a former Los Angeles police officer.
A California Fish and Wildlife official told KCAL-TV the officers were injured.
It's not clear if Christopher Dorner is in custody.
The manhunt for Dorner began last Wednesday when he was named the suspect in the Orange County murders of a former Los Angeles police captain's daughter and her fiance the previous weekend.
Hours after police announced they were looking for him, Dorner first fired at two LAPD officers, then ambushed the Riverside officers.
A $1 million reward is out for information on Dorner
LOS ANGELES (AP) -- A law enforcement official says a person believed to be the fugitive ex-Los Angeles cop sought in three killings has exchanged gunfire with authorities in the San Bernardino Mountains.
The officer requested anonymity because the officer was not authorized to speak publicly about the ongoing investigation.
The officer tells The Associated Press it's believed Christopher Dorner committed a residential burglary of a cabin and had a couple tied up in the cabin. One was able to get away and make a call.
Authorities responded to the location and gave chase Tuesday when Dorner fled in a stolen car. Gunfire was exchanged.