The declaration was presented by Peruvian Foreign Minister Ricardo Luna, who told reporters "what occurred in Venezuela" - the installation of the constitutional assembly - "is a decisive rupture" in the country's political situation and "what we have now is that Venezuela is a dictatorship".
Similarly, ALBA confirmed its support for a dialogue between the Government and Venezuelan opposition groups to resolve differences within the country.
The decree giving the body its powers was unanimously approved, said the ruling socialist party's leader, Delcy Rodriguez.
Colombia's Foreign Minister Maria Angela Holguin, along with foreign ministers and representatives from across the Americas, gives a news conference after a meeting to discuss the Venezuelan crisis, in Lima, Peru, August 8, 2017.
Maradona wrote: "When Maduro orders, I am dressed as a soldier for a free Venezuela, to fight against the imperialism and those who want to take our flags, which is the most sacred thing we have".
He said Guterres is also supporting worldwide and regional efforts seeking to revive talks.
It called on the government of President Nicolas Maduro to rein in security forces and investigate alleged abuses, release people arbitrarily detained, and ensure the protection of the ousted Attorney-General Luisa Ortega.
Department spokeswoman Heather Nauer issued a series of tweets on Venezuela Tuesday.
Venezuela's supreme court sentenced a prominent opposition mayor, Ramon Muchacho, to 15 months in prison and stripped him of his right to hold political office.
The opposition had called for new roadblocks on Tuesday, but only a few hundred people participated in the east of Caracas, before being dispersed by tear gas.
A statement signed by the 12 nations also condemned Venezuela for not allowing foreign donations of food and medicine and for the systematic violations of human rights. But according to the preliminary findings, Venezuela's security forces were allegedly responsible for the deaths of at least 46 protesters between April and July 31 while pro-government armed groups known as "colectivos" were linked to 27.
These are their disregard for the Constituent Assembly and the decision to only accept what the National Assembly authorizes.
The assembly was expected to gather at the legislative palace in Caracas for the first time since voting Saturday to remove the nation's outspoken chief prosecutor, a move that drew condemnation from numerous same regional government that are sending representatives to the meeting in Peru's capital.
Peru has been one of the most outspoken critics of Maduro under centrist Peruvian President Pedro Pablo Kuczysnki, a former Wall Street banker whom Maduro has described as a lackey of the US.