"The accusations are really serious, so we need to make sure we have proper oversight," Sen. Joni Ernst (R-Iowa) said in an interview with HuffPost.

Concern over media reports that the US military carried out a second strike killing survivors on a suspected drug boat prompts a bipartisan inquiry.

"The accusations are really serious, so we need to make sure we have proper oversight," Sen. Joni Ernst (R-Iowa) said in an interview with HuffPost.

US House and Senate lawmakers to meet with top admiral on Thursday about double strike on boats from Venezuela