WASHINGTON (AP) — The United States took survivors into custody after its military struck a suspected drug-carrying vessel in the Caribbean — the first attack that anyone escaped alive since President Donald Trump began launching deadly strikes in the region last month, a defense official and another person familiar with the matter said Friday.

Trump later confirmed the attack.

“We attacked a submarine, and that was a drug-carrying submarine built specifically for the transportation of massive amounts of drugs” Trump said while hosting the Ukrainian president at the White House.

Secretary of State Rubio did not dispute that there were survivors, but he repeatedly said details would be forthcoming.

The strike Thursday brought the death toll from the Trump administration’s military action against vessels in the region to at least 28.

It is believed to be at least the sixth strike in the waters off Venezuela since early September, and the first to result in survivors who were picked up by the U.S. military. It was not immediately clear what would be done with the survivors, who the people said were being held on a U.S. Navy vessel.

They confirmed the strike and the seizing of survivors on the condition of anonymity because the attack had not yet been publicly acknowledged by Trump’s administration.

Trump has justified the strikes by asserting that the United States is engaged in an “armed conflict” with drug cartels, relying on the same legal authority used by the Bush administration when it declared a war on terror after the Sept. 11 attacks. That includes the ability to capture and detain combatants and to use lethal force to take out their leadership.

Some legal experts have questioned the legality of the approach. The president’s use of overwhelming military force to combat the cartels, along with his authorization of covert action inside Venezuela, possibly to oust President Nicolás Maduro, stretches the bounds of international law, legal scholars said this week.

Trump on Friday appeared to confirm reports that Maduro has offered a stake in Venezuela’s oil and other mineral wealth in recent months to try to stave off mounting pressure from the United States. The New York Times last week first reported about the effort by the Maduro government.

Venezuelan government officials have also floated a plan in which Maduro would eventually leave office, according to a former Trump administration official. That plan was also rejected by the White House, the AP reported.

“He’s offered everything,” Trump said in an exchange with reporters at the start of his meeting with Ukrainian President Volodymyr Zelenskyy. “You know why? Because he doesn’t want to f—- around with the United States.”

For the survivors of Thursday’s strike, the saga is hardly over. They now face an unclear future and legal landscape, including questions about whether they are now considered to be prisoners of war or defendants in a criminal case. The White House did not comment on the strike.

Reuters was first to report news of the strike late Thursday.

The strikes in the Caribbean have caused unease among both Democrats and Republicans on Capitol Hill, with some Republicans saying they have not received sufficient information on how the strikes are being conducted. A classified briefing for senators on the Senate Armed Services Committee earlier this month did not include representatives from intelligence agencies or the military command structure for South and Central America.

However, most Senate Republicans stood behind the administration last week when a vote on a War Powers Resolution was brought up, which would have required the administration to gain approval from Congress before conducting more strikes.

Their willingness to back the administration will be tested again. Democratic Sen. Tim Kaine of Virginia, along with Sens. Adam Schiff, a California Democrat, and Rand Paul, a Kentucky Republican, is bringing another resolution that would prevent Trump from outright attacking Venezuela without congressional authorization.

___

Associated Press writers Seung Min Kim and Aamer Madhani contributed reporting.