Unalaska, AK – A man working on the processing vessel Northern Victor is missing and presumed overboard after disappearing from the ship Thursday morning.

A Coast Guard helicopter search for 23-year-old Joseph Arop was called off Thursday night. Arop failed to show up Thursday morning for drills on the Northern Victor, which is owned by Icicle Seafoods and anchored in Udagak Bay in Beaver Inlet, southeast of Unalaska.

Alaska State Troopers and the Coast Guard were alerted Thursday afternoon after a search of the surrounding waters and shoreline by the ship's crew failed to turn up anything. The Adventure, a nearby fishing vessel, helped in the search effort as well.