From Associated Press.

Cuban soldiers confronted a speedboat carrying 10 people as the vessel approached the island and opened fire on the troops, who fired back, killing four and wounding six, according to the Cuban government.

The Cuban Ministry of the Interior said the people aboard the boat Wednesday were Cubans living in the U.S. and accused them of trying to infiltrate the country to engage in terrorism. U.S. Secretary of State Marco Rubio said it was not a U.S. government operation.