Dozens of Haitian migrants went missing after a boat carrying about 200 of them capsized and sank off the coast of the Caribbean islands of Turks and Caicos on Monday.

At least four bodies had been recovered and several others were feared dead, according to the U.S. Coast Guard.

Rescuers plucked about 70 survivors from the reefs— many were then taken to hospital on the British-dependent island chain.

The Coast Guard is still searching for more victims.

The Turks and Caicos are situated about 600 miles southeast of Miami. Haitians often travel through the islands in jam-packed vessels, hoping to find jobs in the Bahamas or Florida.