Hurricane Irma has caused "huge damage" to St Martin, devastating its airport and port and leaving the Dutch part of the Caribbean island unreachable, Dutch Prime Minister Mark Rutte said on Thursday.
"Alas, the island is not reachable at this point because of the huge damage to the airport and the harbour," Rutte told reporters.
He said there were no reports of deaths on the Dutch side so far, while no one had been killed on the Dutch islands of St Eustatius and Saba as the powerful and rare Category Five storm roared through on Wednesday.
French authorities say at least eight lives have been lost on the French side of St Martin.
Rutte said the priority now was to get the airport in the southern Dutch part of the island up and running again, to enable aid to be brought in.
After holding crisis talks with his top cabinet ministers, Rutte confirmed "there is no power" on St Martin and the island's "infrastructure is badly damaged."
French Interior Minister Gerard Collomb told reporters the airport on the French side will be reopened, allowing helicopters and aircraft to supply aid.