The Lebanese army supplied fuel to two key power stations that had run out of fuel, bringing Lebanon's electricity grid back online on Sunday, according to a minister, ending nearly a day of total blackout.

The Deir Ammar and Zahrani plants went offline on Saturday, causing the state electricity network to go offline for the second time this month.

Walid Fayad, the energy minister, said on Sunday that the grid was back up and running.

"The network is back to normal, as it was before the gasoil ran out at Deir Ammar and Zahrani," he said in a statement, implying that production would resume within the next few hours.

He thanked the army for delivering 6,000 kilolitres of gasoil, half of which he claimed was distributed to each power station.