A group of Latin American countries and Canada has urged the Venezuelan military to support opposition leader Juan Guaidó as interim president.
In a statement, 11 of the 14 members of the Lima Group called for a change of power without the use of force and the urgent delivery of humanitarian aid.
Mr Guaidó has declared himself interim president and won support from major powers including the US.
President Nicolás Maduro says he is the legitimate leader of Venezuela.
Mr Maduro, who has the backing of a number of countries including China and Russia, earlier warned that the country's deepening political crisis could spark civil war.
Mr Maduro was sworn in last month for a second term after disputed elections which many opposition leaders did not contest because they were in jail or boycotting them.
In response, Mr Guaidó, who is head of Venezuela's National Assembly, said the constitution allowed him to assume power temporarily when the president was deemed illegitimate.
What did the Lima Group say?
The group issued a 17-point declaration, following a meeting in the Canadian capital, Ottawa.
The document says the governments of Argentina, Brazil, Canada, Chile, Colombia, Costa Rica, Guatemala, Honduras, Panama, Paraguay and Peru "reiterate their recognition and support for Juan Guaidó" as interim president of Venezuela.
The 11 group members also urged the world community "to take measures to prevent the Maduro regime from conducting financial and trade transactions abroad, from having access to Venezuela's international assets and from doing business in oil, gold and other assets".
However, three members of the Lima Group - Guyana, Mexico and St Lucia - did not back the declaration.
The Lima Group was set up in 2017 with the aim of helping to find a peaceful solution to the Venezuela crisis.