The US Coast Guard says a field of debris found near Nantucket is believed to be from an emergency medical plane. Debris has been found in waters off the US east coast in the search for a missing medical plane carrying seven people. Key points and original sources are listed below.

• The US Coast Guard says a field of debris found near Nantucket is believed to be from an emergency medical plane.S1

• Debris has been found in waters off the US east coast in the search for a missing medical plane carrying seven people.S2