Authorities in the Houston area say a pizza delivery driver was shot and killed as he returned to his car after delivering a pizza at an apartment complex.

The Harris County Sheriff's Office says the shooting occurred Thursday evening at a complex in northern Harris County and involved two suspects who were seen running from the parking lot.

The driver, who worked for Papa John's Pizza, has not been identified. KTRK-TV in Houston reports that he was 45 years old.

He was found on the ground between two cars.

Authorities say the person who ordered the pizza is not considered a suspect and it wasn't immediately clear if robbery was a motive in the shooting.

Investigators are checking surveillance cameras in an effort to identify the suspects.