Authorities say no one was found during a search for stowaways aboard a ship docked in Port Newark, New Jersey.
Department of Homeland Security, U.S. Coast Guard and Port Authority officials looked through 163 containers aboard the Ville D'Aquarius that originated in Pakistan.
X-ray machines and K-9 units were unable to locate any stowaways.
The manhunt was launched Wednesday morning after crews reported hearing knocking sounds coming from a container during a routine inspection.