MONTEREY PARK (CBSLA.com) — An off-duty LAPD officer is being accused of aiming her gun at another driver during an incident of road rage in East Los Angeles just after 5 p.m. Thursday.

The confrontation occurred along the eastbound 60 Freeway.

Rachel Kim, reporting for CBS2, said the CHP and LAPD are investigating.

A source with the CHP confirms the woman seen pointing the gun in traffic is an off-duty LAPD officer from the department’s internal affairs division.

Kim did not report the officer’s name because no one has been charged in the altercation.

A source with the CHP confirmed to Kim that there was a road-rage confrontation between two drivers.

The driver of the other car, the man who snapped the photo of the officer aiming the gun at him, says he called 911 at the same time the CHP got a call from the female driver.

The confrontation began in Boyle Heights. Both drivers exited onto Findlay Avenue in Monterey Park. Authorities said officers arrived to intervene.

The CHP source told Kim the off-duty LAPD officer told them she pulled her gun fearing for her safety. She claims the other driver was trying to run her off the road.

By phone, the other driver told Kim he switched lanes in front of the off-duty officer and things got heated before she pulled a weapon.

Neither driver would go on camera Friday evening, Kim reported. She said the male driver didn’t want to make a statement until he could consult an attorney.

The LAPD confirms that the CHP is investigating an incident involving one of its officers. The LAPD told Kim it is conducting its own internal investigation.