An off-duty Chicago Police officer was killed in a crash on the Dan Ryan Expressway Sunday afternoon, state police said.

The officer was riding a motorcycle south on the Dan Ryan near 69th Street when he was hit by another vehicle about 2:15 p.m., according to state police. While state police initially reported it as a hit-and-run, officials later said the other driver involved in the accident did remain on the scene.

The officer was dead at the accident site, state police said.

The local southbound lanes of the Dan Ryan were closed to traffic between 69th and 71st streets as of 3:30 p.m. as state police investigate.