The U.S. Coast Guard uncovered debris from a medical plane carrying six people that went missing off the coast of Nantucket, Massachusetts, on Saturday.

The aircraft was flying from Bermuda to Boston. 

The search for the missing passengers is still under way. 

There were four Canadian and two Bermudian nationals on board, the Coast Guard revealed.   

The Federal Aviation Administration had lost contact with the Gulfstream G-100 around 1 a.m. on Saturday.