The Globe and Mail reports in its Monday edition that Air Canada, WestJet and Air Transat have indefinitely suspended flights to Cuba, as shortages of food, fuel and electricity grow worse amid widening U.S. sanctions. The Globe's Eric Atkins writes that the airlines had planned to resume flights to Cuba in the fall after pausing service in February. Air Canada pointed to the "ongoing political and economic uncertainty" in Cuba and said affected customers will be offered options that include refunds. WestJet cited the current operating environment for the "difficult decision," which includes its Sunwing Vacations division. "We recognize this news may be disappointing for guests and travel advisers, particularly given the strong connection many Canadians have with Cuba and its people," the carrier said in a statement. Air Transat said the Montreal-based carrier will deploy its planes elsewhere next winter. In February, U.S. President Donald Trump ordered a naval blockade of the island, cutting off most fuel supplies and setting off waves of blackouts and food shortages. The U.S. also cut off Cuba's fuel imports from Venezuela, its main source, after launching a military strike there and capturing the country's leader.