US Secretary of State John Kerry has said the government of Venezuela must end its “terror campaign against its own citizens”.
Mr Kerry said the Organisation of American States (OAS), allies and neighbours should demand accountability of Venezuela over the protests.
Authorities say 28 people have died since they began more than a month ago.
Venezuela accuses the United States of helping “right-wing fascists” to plot a coup with the unrest.
Mr Kerry’s remarks are the starkest from Washington since the protests began, BBC informs.