The vessel, which isn’t carrying any cargo, is susceptible to being pushed around in the wind because of its low weight, according to U.S. Coast Guard officials. The Pan Viva had been anchored outside Constantine Bay for over 24 hours as of Sunday.

Four crew members evacuated from the Pan Viva, now heading to Washington, are back aboard after it lost its port anchor Saturday.

The U.S. Coast Guard removed four crew members from the Pan Viva Saturday afternoon. The distressed 738-foot Panama-flagged cargo ship is anchored near Constantine Bay in Unalaska. The tugboat Gretchen Dunlap is standing by to assist the ship,