Pittsburgh Bureau of Police investigators responded to a report of an unattended package or device on the North Shore riverwalk near the Clemente Bridge around 10:45 a.m.

A man walking on the trail noticed the package and flagged down an officer. The officer determined that the package was suspicious and that it appeared to be a potentially harmful device.

Police immediately closed the Clemente Bridge, Riverwalk and nearby businesses. The Coast Guard halted river traffic.

The Bomb Squad responded and sent a robot down to examine the device, then a Bomb Squad investigator in a bomb suit. After investigating, Bomb Squad officials determined that the device was not harmful.

Police are investigating. No arrests at this time.

The Bridge and businesses reopened around 12:30 p.m.