Cuban Border Guard Troops shot and killed four people and injured six others aboard a Florida-registered speedboat.

Cuba’s forces fatally shot four people on a Florida-registered speedboat who were attempting to enter Cuban waters Wednesday and “infiltrate” the island, authorities said.

The ministry stated that the group consisted of anti-government Cubans who had travelled from the United States armed with assault rifles, handguns, homemade explosives, ballistic vests and telescopic...