CARACAS (Reuters) -Venezuela’s capital Caracas and much of the rest of the country was without power early on Friday, the government said, blaming the blackout on sabotage by the opposition without providing any evidence.

President Nicolas Maduro, who is locked in a dispute with the opposition over the outcome of a July 28 presidential election, often blames “attacks” on the power grid on his political rivals, accusations the opposition has always denied.

All 24 of the country’s states reported a total or partial loss of the electricity supply, minister of communication and information Freddy Nanez said on state television.

“We have been victims once again of electrical sabotage,” he said. He gave no evidence of a deliberate attack.

Nanez also blamed a series of smaller blackouts which affected some states on Tuesday on sabotage.

An opposition spokesperson did not immediately respond to a request for comment.

In Caracas, workers gathered outside office buildings in the central Plaza Venezuela.

“We don’t know how long this will last,” said office cleaner Bartolo Polanco, who arrived by bus from his home in the satellite city of Guarenas and was waiting outside with colleagues.

“We’re waiting for our boss’ instruction to go home if we can’t work,” he said.

Bakery worker Alejandro Rondon, 25, said the card payment machine was still working and he was selling what he could.

“We can’t make anything today because the ovens aren’t working. My fear is for the yeast, which needs to be cold,” he said.

Services on the city’s metro were halted and had been replaced by more than 250 buses, Transport Minister Ramon Velasquez said.

ELECTION DISPUTE

Venezuela’s government and opposition both say their candidate won last month’s election, with the electoral authority and Supreme Court backing Maduro. Authorities have not released full vote tallies despite international calls to do so.

Arrests of opposition figures have risen sharply over the last week.

Former opposition candidate Edmundo Gonzalez and opposition leader Maria Corina Machado are being investigated for incitement and other crimes by Attorney General Tarek Saab.

Gonzalez has ignored two summons to testify about a website where the opposition has posted what it says is more than 80% of ballot box vote tallies, which show a resounding win for him.

A third citation for Gonzalez was issued for Friday, but it was unclear if it remained valid amid the blackout. A text message to Saab seeking comment did not appear to have been delivered.

Venezuela suffered three national blackouts in 2019, with some lasting as long as three days. Authorities also attributed those power outages to attacks on the network – such as damage to power lines – by saboteurs and opponents of Maduro’s government.

Maduro has presided over a sharp economic deterioration since he took office in 2013.

The blackout hit some of state oil company PDVSA’s operations, including its smallest refinery, the 146,000-barrel-per-day El Palito, and the firm’s Caracas headquarters, sources close to operations said.

PDVSA’s largest refining complex Paraguana was unaffected.

(Reporting by Vivian Sequera, Mayela Armas and Deisy Buitrago in Caracas; Additional reporting by Marianna Parraga in Houston, Mircely Guanipa in Maracay and Tibisay Romero in Valencia; Writing by Julia Symmes Cobb and Natalia Siniawski; Editing by Kirsten Donovan, David Holmes and Helen Popper)