POMONA — The investigation continued Saturday into the discovery of a body inside a flaming car on the side of an onramp to the 10 Freeway.

The grisly find was made about 10 p.m. Thursday on the South Campus Drive onramp to the westbound 10 Freeway after passing motorist reported seeing the newer-model Chevrolet Impala on fire.

While the charred condition of the body still prevented identification, investigators believed it to be that of a man in his mid-30s, Los Angeles County Department of Coroner’s Lt. Larry Dietz said.

Identification would likely have to be made through dental records or x-rays, he added.

Once firefighters extinguished the blaze, they found the body in the driver’s seat, Pomona police officials said. Arson investigators ruled the fire to be suspicious, and Pomona police homicide detectives launched and investigation.

An autopsy was planned to determine how the man died.

The car did not show signs of being involved in a major traffic accident.