Autopsy results are pending for a 24-year-old man found dead Thursday on a Blue Line train at the Rosemont station, the Cook County medical examiner’s office said Friday.

Brandon S. Laverdure, of the Near West Side, was found unresponsive on a train car about 1:30 p.m. and pronounced dead at the scene, according to Chicago police and the medical examiner’s office.

Train service was temporarily suspended between O’Hare and Jefferson Park about 2 p.m. as officials investigated, but normal service resumed with delays by 4:15 p.m., the Chicago Transit Authority said.

Chicago police are conducting a death investigation. A police spokesman on Friday did not have updates on the case.