Maduro accuses Guaido and the United States of plotting an invasion.
The U.S. and the other governments that recognize Mr. Guaido as Venezuela's interim president say Maduro wasn't legitimately re-elected a year ago because opposition candidates weren't permitted to run. Mr.
The United States has imposed numerous rounds of sanctions against Venezuela in response to the political developments in the country.
The United States has implemented a raft of sanctions to put pressure on Maduro, and the USA special envoy on Venezuela, Elliott Abrams, said on Tuesday that Washington was prepared to impose "very significant" additional sanctions in the coming days against financial institutions deemed to be supporting Maduro's government.
Schools and many businesses remained closed on Tuesday. Their presence "entails risks for the peace, integrity and stability of the country", Foreign Minister Jorge Arreaza said.
The opposition has accused Maduro of going after his opponents, and amid signs of a crackdown on the media, the National Press Workers' Union said that prominent radio journalist Luis Carlos Diaz was arrested on Monday by intelligence agents at his home in Caracas.
The US will withdraw all remaining State Department officials from Venezuela as a nationwide blackout and political turmoil has gripped the economically struggling nation.
Millions left without electricity in Venezuela
Also on rt.com Back to square one? Despite global outcry at Maduro's decision to turn back the aid convoy, Elliott Abrams, U.S. "The regime at this hour, days after a blackout without precedent, has no diagnosis", he said at a news conference on Sunday.
"We wanted to get them out of the country so that we could move forward in a way that provided that opportunity", Mr. Pompeo said.
Washington's latest pressure on Maduro's regime came as the US withdrew its remaining staff from the Latin American country.
"We don't want to loot stores, we don't want to cause problems".
"Maduro, along with Minister of Communication Jorge Rodriguez, continue to provide evidence that Pompeo and the USA authorities were the masterminds behind this very "situation", pulling off a cyber attack on the state electric company's computer system at the El Guri hydroelectric plant resulting in the near nationwide power outage, "reported teleSUR English Tuesday". Washington vowed to hurry the evacuation of its mission.
The U.S. has led an global effort to replace Mr.
"The doctors told me that there are no miracles", said Yalimar, who hopes her daughter can be transferred Tuesday to one of the few hospitals in Venezuela that would be able to finish the complex procedure.
Engineers have restored power in some parts of Venezuela, but it often goes out again.
Guaido is already under investigation for alleged instigation of violence, but authorities have not tried to detain him since he violated a ban on leaving the country and then returned a week ago from a Latin American tour.