Both the House and the Senate Armed Services committees said separately that they would conduct “oversight” into the circumstances around the strikes.

Both the House and the Senate have started inquiries into a reported second strike on an alleged drug boat in the Caribbean in September that killed the survivors of an initial strike.

The Defense Department conducted a second strike on a boat the Trump administration says was carrying drugs from Venezuela after the first strike on the boat failed to kill all of its occupants, one U.S. official and a source familiar with the Pentagon’s actions that day told NBC News.

The first of the two strikes conducted on Sept. 2 left at least two survivors, the officials said. The second strike killed the remaining survivors, according to the officials.