Four people are dead and at least two are wounded after a series of shootings in southern California early Tuesday morning, according to local reports.

The shootings were reported near the 5 and 55 freeways in Tustin, CA about 55 km southeast of Los Angeles, the Orange County Register reported.

At about 5:20 a.m., a person was shot and killed in a house before the suspect fled in an SUV and then tried to carjack multiple vehicles, the Register reported.

A bystander was shot and injured at the first carjacking, not long before a driver was believed to be shot and killed. The suspect then apparently took the vehicle, the Register reported.

Officers received reports of a man with a gun in a nearby area where two other people were shot, one fatally, when the suspect apparently took another car.

Police located the suspect driving on the 55 freeway, but said he shot and killed himself before officers were able to intervene.