Lebanon's two biggest power stations shut down due to a fuel shortage on Friday, and the country has no centrally generated electricity.
A government official told Reuters on Saturday.
"The Lebanese power network completely stopped working at noon today, and it is unlikely that it will work until next Monday, or for several days," the official said.
The thermoelectric plant has stopped at the Zahrani power station after the Deir Ammar plant stopped on Friday due to a fuel shortage.
The official said the state electricity company would try to use the army's fuel oil reserve to operate the power plants temporarily, but that would not happen anytime soon.
Many Lebanese normally rely on private generators run on diesel, although that is in short supply.
Lebanon has been paralysed by an economic crisis, which has deepened as supplies of imported fuel have dried up. The Lebanese currency has sunk by 90% since 2019.
Israeli occupation forces committed multiple massacres against families in the Gaza Strip over the past 24 hours, resulting in the killing of at least 60 Palestinians and the injury of 162 others, according to medical reports.
U.S. President Donald Trump fired General Timothy Haugh as director of the National Security Agency on Thursday, according to two officials familiar with the decision, and congressional Democrats denounced the removal of the nonpartisan official from a top security post.
Israel stepped up airstrikes on Syria, declaring the attacks a warning to the new rulers in Damascus as it accused their ally Turkey of trying to turn the country into a Turkish protectorate.
The Trump administration moved forward with the sale of more than 20,000 US-made assault rifles to Israel last month, according to a document seen by Reuters, pushing ahead with a sale that the administration of former president Joe Biden had delayed.