Two lanes of the northbound 110 Freeway were shut down at Via Marisol in Highland Park on Tuesday while police investigated the circumstances surrounding a man's death.
Los Angeles police said that four or five shots had been heard about 5 p.m.
Officers found a man's body in the dirt near a homeless camp east of the freeway.
An official with the LAPD said the man appeared to have been visiting the camp.
As of 11 p.m., the investigation was still affecting traffic in the nortbound lanes.