The U.S. has deported 11 Cubans under an agreement Washington made with Havana after a massive 1980 boatlift.

In a statement to El Nuevo Herald (http://hrld.us/1VEYNNn ), U.S. Immigration and Customs Enforcement spokesman Nestor Yglesias said the deportations took place under the terms of a 1984 agreement listing specific Cubans to be returned to the communist island.

More than 2,700 Cubans who arrived around the time of the Mariel boatlift were included on the list. It's unclear how many still await deportation. ICE officials told the newspaper that by January 2015, about 2,000 already had been deported.

The Miami Herald has previously reported that nearly 30,000 Cuban nationals convicted of crimes in the U.S. eventually may face deportation. They were released under supervision by immigration authorities when the U.S. had no diplomatic relations with Cuba.