Algeria will immediately supply Lebanon with fuel to operate power plants to ensure electricity supplies across the country, Algerian state radio said in a statement on Sunday. 

It comes as Lebanon's Zahrani power plant shut down on Saturday, resulting in a total power outage across all Lebanese territories. It's after its reserves were depleted. On Sunday morning 5 million litres of oil was pumped into the plant, the director of the Zahrani oil facilities, Ziad al-Zein announced in a statement.

This oil will initially only provide power to "vital facilities" but al-Zein said he expected that "after the meeting of the Board of Directors of Electricité du Liban, a decision and a statement will be issued regarding the date of restarting the plant."

The shutdown has had a significant impact, affecting essential facilities such as the airport, port, water pumps, sewage systems and prisons, according to a statement from the state power provider Electricité du Liban (EDL) on Saturday.