MESA, Ariz. — Four people are detained after a road rage incident in Mesa, the city's police department said.

Initial information suggested the incident started as a road rage situation between two vehicles getting off the freeway near US 60 and Dobson Road.

Authorities said the caller reported someone in the other vehicle pointed a gun at them and left. Police later found the car involved in the incident and discovered there were four people in the car.

All four people were detained and the investigation is ongoing. The identities of those involved were not released.

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