CARACAS, Venezuela (AP) — The Latest on the political crisis in Venezuela (all times local):

4 a.m.

Russian officials and senior lawmakers have reacted angrily to opposition protests in Venezuela that support opposition leader Juan Guaido’s claim to the presidency.

Alexei Pushkov, chairman of the information committee at the Federation Council, on Thursday called Guaido’s declaration “an attempted coup” backed by the U.S.

Russia has been propping up incumbent President Nicolas Maduro, who took office for a second term earlier this month, with arms deliveries and loans. Maduro visited Moscow in December, seeking Russia’s political support and financial support.

“It’s impossible to imagine that this was spontaneous,” Pushkov said on state-owned Rossiya 24 television station, referring to the opposition protests. “That was a pre-planned action, and it was certainly coordinated by the United States.”

President Donald Trump has promised to use the “full weight” of U.S. economic and diplomatic power to push for the restoration of Venezuela’s democracy.

Pushkov warned that the showdown between Maduro and Guaido “could lead to a civil conflict, even civil war.”

Konstantin Kosachev, chairman of the Federation Council’s foreign affairs committee, in a Facebook post on Thursday accused the U.S. of “inciting protests” in Venezuela.

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3:50 a.m.

A senior official says Turkish President Recep Tayyip Erdogan has called Venezuela’s embattled president, Nicolas Maduro, to voice his support after the leader of a united opposition claimed to hold the interim presidency.

Presidential spokesman Ibrahim Kalin tweeted early Thursday that Erdogan told Maduro: “‘My brother Maduro! Stay strong, we are by your side.'”

Kalin added that Turkey, under Erdogan’s leadership, would “maintain its principled stance against coup attempts.”

Juan Guaido declared himself interim president before a mass of demonstrators in Caracas on Wednesday. The U.S., Canada and another dozen mostly Latin American countries quickly announced that they supported Guaido’s claim to the presidency.

Turkey has cultivated close economic and political ties with Maduro. During a visit to Venezuela in December, Erdogan criticized U.S. sanctions on the crisis-ridden country.

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1 a.m.

Australia is considering recognizing the rival claimant to Venezuela’s presidency after the United States and many Latin American did so.

Congress leader Juan Guaido has declared himself interim president and said it was the only way to end President Nicolas Maduro’s “dictatorship.”

After the U.S. and others announced their support for Guaido, Maduro fired back late Wednesday by breaking relations with the U.S. and ordering its diplomats to leave. Washington says it will ignore the order.

Australian Foreign Minister Marise Payne said Thursday that her government is considering recognizing Guaido as president.

She told reporters in Sydney that Australia was concerned about what the “clearly deteriorating political, economic and security and humanitarian situation in Venezuela and it is having significant effects across the Latin American region.”

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12:15 a.m.

Venezuelans are heading into uncharted political waters, with the young leader of a newly united and combative opposition claiming the presidency and socialist President Nicolas Maduro digging in for a fight with the Trump administration.

Violence flared again Wednesday during big protests across Venezuela, and at least seven deaths were reported in the escalating confrontation with Maduro, who has been increasingly criticized by many nations.

Congress leader Juan Guaido turned up the heat by declaring himself interim president before a mass of demonstrators in Caracas. He said it is the only way to end Maduro’s “dictatorship.”

The U.S., Canada and many Latin American countries quickly announced support for Guaido.

Maduro fired back by breaking relations with the U.S. and ordering its diplomats out. Washington says it will ignore the order.