The US is asking the United Nations to remove the Venezuelan government's credentials and formally recognise self-proclaimed interim President Juan Guaido as the country's leader.
The UN Security Council held an emergency meeting on the deteriorating situation.
Nick Harper reports from New York:

Trump says deal to end war to be signed Sunday, Iran questions timing
India Air Force plane crash kills all five onboard
Ukrainian strike kills one, wounds 3 in southern Russia
Trump says US military strike killed leader of Venezuela's Tren de Aragua gang
Qatar rejects media report on energy production decisions
Trump says Iran war deal close as Strait of Hormuz tensions linger
Victims' families mark Air India crash anniversary with prayers and tributes
Ebola outbreak spreads to crowded displacement camp in Congo
