WASHINGTON — CIA Director John Ratcliffe has warned Cuban officials that the Communist island “can no longer be a safe haven for adversaries” of the US while extending an offer of cooperation on economic and national security matters — if Havana makes “fundamental changes.

Cuba’s top diplomat in the U.S. said the country is sticking to its red lines amid faltering negotiations it says have made “no progress” and a looming threat from President Trump to invade the nation...

Trump has issued a oil blockade against Cuba, which has exacerbated fuel shortages.