Four men were killed Friday in a U.S. military strike reportedly targeting suspected drug runners in the Caribbean Sea — the latest in a series of attacks in the region.

It's now the fourth strike in a campaign that has been legally disputed, The New York Times reports.

President Donald Trump responded to the attack via his Truth Social platform, sharing an unclassified video of the attack:

"A boat loaded with enough drugs to kill 25 TO 50 THOUSAND PEOPLE was stopped, early this morning off the Coast of Venezuela, from entering American Territory," he wrote.

Defense Secretary Pete Hegseth announced the strike on social media:

“Our intelligence, without a doubt, confirmed that this vessel was trafficking narcotics, the people onboard were narco-terrorists, and they were operating on a known narco-trafficking transit route," he wrote. “These strikes will continue until the attacks on the American people are over!!!!”

Multiple reports indicated Thursday that President Donald Trump is apparently declaring that the U.S. is at war with drug cartels.

The notice was obtained by The Times and sent to multiple congressional committees and includes more details about the three strikes the U.S. military made on boats in the Caribbean Sea that left 17 people aboard dead and how these acts "should be seen as lawful rather than murder."

"Mr. Trump’s move to formally deem his campaign against drug cartels as an active armed conflict means he is cementing his claim to extraordinary wartime powers, legal specialists said," according to The Times.