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On Wednesday Israel carried out its heaviest strikes on Lebanon since the conflict with Hezbollah broke out last month.

It came even as the Iran-aligned group paused attacks on northern Israel and Israeli troops in Lebanon under a two-week U.S.-Iran ceasefire.

Consecutive explosions shook Beirut sending smoke billowing across the capital.

Israel's military said it had launched the largest coordinated strike of the war.

More than 100 Hezbollah command centers and military sites were targeted in Beirut, the Bekaa Valley and southern Lebanon, it said.

The strikes killed dozens and wounded hundreds, according to Lebanon's health ministry.

Israeli Prime Minister Benjamin Netanyahu said overnight that the ceasefire suspending the six-week-old U.S.-Israeli war against Iran did not apply to Lebanon.

And later on Wednesday White House spokesperson Karoline Leavitt said the U.S. agreed.

"Lebanon is not part of the ceasefire. That has been relayed to all parties involved in the ceasefire. As you know Prime Minister Netanyahu put out a statement last night in support of the ceasefire, in support of the United States' efforts and he's also assured the president they will continue to be a helpful partner over the next two weeks.

However that position appeared to contradict comments by Pakistani Prime Minister Shehbaz Sharif, a key intermediary in the U.S.-Iran ceasefire talks.

An Israeli strike on the southern city of Sidon also killed at least eight people and wounded more than 20 others, Lebanon's health ministry said.

Hezbollah stopped attacking Israeli targets early on Wednesday, three Lebanese sources close to the group told Reuters.

Israel's military said most of its strikes on Wednesday were in civilian-populated areas.

Hours before the strike, they had issued warnings for some areas of southern Beirut and southern Lebanon.

No such warning was given for central Beirut, which was also hit.

More than 1,500 people have been killed in Israel's air and ground campaign across Lebanon since March 2 when Hezbollah started firing rockets at Israel in solidarity with Tehran.

Israel has issued evacuation orders covering around 15% of Lebanese territory since then, mostly in the south and in suburbs south of Beirut. More than 1.2 million people have been displaced, according to Lebanese authorities.