On Wednesday, the Cuban Coast Guard announced it had killed four people and injured six after intercepting a speedboat licensed in Florida, an incident with the possibility of ratcheting up tensions between the United States and Cuba.

The incident was first revealed by the Cuban Coast Guard, which claimed to have fired on the boat after a passenger fired at its personnel first. A violent exchange off the coast of Cuba on that scale is unprecedented in recent decades, and has led to a flurry of speculation. A case of possible mistaken identity has only added fuel to the flames.