Coast Guard patrol boats shuttled the migrants to Bahia de Cabanas, Cuba on three separate trips made Monday, Thursday and yesterday, the agency said in a statement.
"We discourage anyone from taking to the sea and attempting to reach US soil illegally - they are risking their lives with very little chance of success," Coast Guard Captain Mark Gordon said yesterday.
"Navigating the Florida Straits can be extremely dangerous for the unprepared on illegal voyages and often leads to injury or death."
Cuban migrants who reach the United States are put on a fast track to residency and citizenship under a Cold War-era policy that many fear will be shelved as the two countries normalise relations.
The US Coast Guard has registered at least 6,318 Cubans who have sought to reach US shores by sea since October 1, compared to 4,473 intercepted in the Florida Straits, Caribbean and Atlantic in the fiscal year 2015.
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