At least two sheriff's deputies were wounded in the shootout. (Screenshot by Neon Tommy)

CBS 2 reports that that two sheriff's deputies have been wounded. Four schools in the area have been placed on lockdown.

According to the L.A. Times, Dorner had allegedly broken into a house and tied up a couple days ago when one of them escaped and managed to call the authorities. Dorner then escaped with a stolen white pickup truck before law enforcement tracked him down and engaged him in a shootout. 

Previously, authorities had speculated that the 33-year-old ex-cop wanted for the murders of a police captain's daughter, her fiance and a Riverside police officer, had escaped from Big Bear Lake to Mexico.

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San Bernardino police have sent a tactical team to the snowy area, in addition to setting up road blocks in an attempt to catch Dorner. 

Click here for CBS 2's live feed from Big Bear.

Reach Executive Producer Salomon Fuentes here and Senior News Editor Aaron Liu here.