Najib Mikati said in a statement the UN Security Council meeting on Friday should "take a firm stance to stop the Israeli aggression on Lebanon and the technological war it is waging".

Lebanon's Health Minister Firass Abiad said 37 people were killed and more than 3,500 wounded in a new toll after hand-held devices used by Hezbollah members exploded across Lebanon.

Abiad said 25 people were killed on Wednesday and 12 on Tuesday, updating an earlier toll of 32 dead overall.

The Israeli military said on Thursday it struck six Hezbollah infrastructure sites and a weapons storage facility in southern Lebanon overnight, as fears grew of a full-blown war.

Meanwhile, In a separate statement, the military said two drones crossed into Israeli territory from Lebanon on Thursday.

They fell in areas near Beit Hillel and Yaara, causing no injuries but one sparked a blaze that Israeli firefighters were extinguishing, the statement added.

Expanding Gaza war

Turkey on Thursday accused Israel of seeking to expand the war in Gaza to Lebanon.

"The escalation in the region is alarming," Foreign Minister Hakan Fidan said on state-run TRT television. "We see Israel mounting its attacks towards Lebanon step by step."

"We have come to a point where these operations carried out by Israel have become increasingly provocative, and in return, Iran, Hezbollah and elements close to them have no choice but respond," Fidan said.

Turkish President Recep Tayyip Erdogan on Wednesday called Lebanon's Prime Minister Najib Mikati to offer his condolences over the wave of deadly blasts.

Fidan said of the method of mass explosions: "This is something that intelligence organisations use very often.

"But this one was on a large scale," he added. Israel's campaign risked extending beyond the entire region, he warned.

"While we are currently thinking about Lebanon, there is always a risk of a war that may involve Jordan, Egypt, and the entire region," he said.

"Does Israel want permanent peace or does it want to eliminate everything it sees a threat by using classical war methods?" he asked.