WASHINGTON (AP) — The U.S. has seized survivors after a military strike Thursday on a suspected drug-carrying vessel in the Caribbean, the first since President Donald Trump began launching deadly attacks in the region last month, a defense official and another person familiar with the matter said Friday.

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 on the condition of anonymity because it has not yet been publicly acknowledged by Trump’s administration.