A body has been found in a burnt-out cabin in Big Bear, California, Reuters reported.
The cabin where former LA police officer Christopher Dorner is thought to be holed up is on fire, authorities said.
A SWAT team has entered the cabin where the fugitive former LA police officer is thought to be hiding, CNN reported.
An officer involved in a shoot-out with a man, suspected to be Christopher Dorner, has died of his wounds, the LA Times reported.
The San Bernardino County sheriff's deputy was airlifted to Loma Linda University Medical Center, where he was pronounced dead, according to the report.
A second deputy was also wounded in the shoot-out.
Former US police officer Christopher Dorner has barricaded himself in a cabin in the San Bernardino Mountains in California, following a shoot-out with authorities, reports the Associated Press.
The San Bernardino County Sheriff's Department says two law enforcement officers are being airlifted to a local hospital with unknown injuries.
Christopher Dorner was shot at by a fish and game ranger, as he fled in a stolen vehicle in north-east Los Angeles, Reuters is reporting.
The agency states that earlier Dorner had broken into a home, tied up a couple and stole their pick-up truck.
Local media is also reporting it is believed one of the hostages was able to flee and raise the alarm.
Police officers have engaged in a gun battle in the mountains of California with a person believed to be former Los Angeles police officer Christopher Dorner, reports Associated Press.
The noise of the gun battle was broadcast by KCAL-TV, whose reporter suddenly found himself near the fight. Someone could be heard yelling at the reporter to get out of the area.
Road blocks are up around the Big Bear area, where Christopher Dorner's burned-out pickup was found Thursday.
Authorities have been conducting a manhunt in the area since last week. He is accused of killing a couple and a police officer.
Update: Authorities responding to reports of up to two police officers down amid a shootout involving accused killer Christopher #Dorner.
LA Police have confirmed that Christopher Dorner was involved in a shoot out this afternoon with federal authorities with federal authorities.
The LA Times is reporting that the shooting took place after Dorner burgled a home, tied up a couple and stole their car. It was not immediately clear whether Dorner was in custody.
Authorities in California launched a state-wide manhunt for the former Los Angeles police officer last week after he was suspected of shooting three people.
The hunt for a former Los Angeles police officer suspected in three killings continues a day after the police chief ordered a review of the disciplinary case that led to his sacking, the Associated Press is reporting.
Officials will re-examine the allegations by 33-year-old Christopher Dorner, that his law enforcement career was undone by racist colleagues, police chief Charlie Beck announced.
Mr Beck stressed that he was ordering a review of his 2007 case because he takes the racism allegations seriously.
– Charlie Beck, police chief
I do this not to appease a murderer. I do it to reassure the public that their police department is transparent and fair in all the things we do.