Cuban forces kill four people on a Florida-registered speedboat in a shootout at sea

Cuban border guards exchanged fire with a speedboat registered in Florida, killing four people on board and wounding six others. Cuban officials said the boat was attempting a 'terrorist infiltration' from Florida to destabilize the country, and that those on board opened fire first.

U.S. officials, including Senator Marco Rubio, said they are investigating the incident. Rubio denied any U.S. military involvement. Russia warned against 'provocative actions' around Cuba following the shootout.