President Donald Trump's administration has not offered a credible legal justification for US strikes targeting alleged drug smugglers, experts say, warning that he appears to be claiming an unlawful "license to kill."

The US military has destroyed at least two boats carrying a combined 14 people who were allegedly transporting drugs across the Caribbean this month, with Trump posting videos of the strikes on his Truth Social platform.

Originally published on doc.afp.com, part of the BLOX Digital Content Exchange.