United Nations human rights experts on Tuesday criticized the United States for breaching Venezuela’s sovereignty and the U.N. Charter, condemning Washington’s covert operations and threats of military force under the guise of anti-drug efforts.

U.S. President Donald Trump has waged a military campaign that he says is aimed at choking the flow of drugs from Latin America to the United States.

"These actions also violate the fundamental international obligations not to intervene in the domestic affairs or threaten to use armed force against another country," the three independent rights experts said.

"These moves are an extremely dangerous escalation with grave implications for peace and security in the Caribbean region."

At least six vessels, most of them speedboats, have been targeted by US strikes in the Caribbean since September, but Washington has provided no evidence that the people killed – at least 27 so far – were drug smugglers.