Aircraft have returned to the southeastern Bahamas to resume the search for a U.S. cargo ship with 33 people on board that caught in Hurricane Joaquin.

U.S. Coast Guard, Navy and Air Force planes and helicopters are looking for the El Faro across a broad expanse of the Atlantic Ocean around Crooked Island. They resumed the effort at first light Sunday.

The Coast Guard found a life ring from the El Faro on Saturday but there has been no other trace of the 790-foot ship.

Authorities last heard from the ship Thursday. The crew reported they had lost power and were taking on water but said the situation was manageable. They lost communication and have not been heard from since. The ship was headed to Puerto Rico.