For Americans who want to visit Cuba, things got even murkier as the Trump administration last week said that it would further restrict nonfamily travel to the island.

The new restrictions are part of a tougher policy toward Nicaragua, Venezuela and Cuba, said John Bolton, the president’s national security adviser, who called the three countries “the troika of tyranny” in a speech to veterans of the Bay of Pigs invasion, the failed 1961 attempt to overthrow the government of Fidel Castro.

“The Department of the Treasury will implement further regulatory changes to restrict nonfamily travel to Cuba,” he said. “These new measures will help steer Americans’ dollars away from the Cuban regime.”

The statement suggests that the government will increasingly restrict travel to the island, but it was vague enough to leave travelers wondering if their trips to Cuba would suddenly be canceled.