BEIRUT — Israeli troops have captured a strategic mountain topped with a Crusader-built castle in southern Lebanon in the deepest incursion into the country in more than a quarter-century, the military said Sunday.

The taking of Beaufort castle, near the city of Nabatiyeh, followed days of airstrikes and intense fighting in nearby villages between Israeli troops and Hezbollah militants.

The capture marked a major Israeli advance in the latest Israel-Hezbollah war, which began on March 2, when Hezbollah fired rockets into northern Israel two days after the U.S. and Israel attacked its main backer, Iran.

Since then, Israel has launched a ground invasion, capturing dozens of Lebanese villages and towns close to the border. Hezbollah has launched thousands of missiles and drones at Israeli soldiers in southern Lebanon and northern Israel.

The Israeli push came despite a nominal ceasefire that has been in place since April 17 and just days before Lebanon and Israeli hold their next round of direct talks in Washington starting Tuesday.

Lebanese Parliament Speaker Nabih Berri, a key Hezbollah ally, said he can guarantee the militant group’s “full, comprehensive and immediate commitment to a ceasefire.”

“But who will force Israel to stop its aggression?” he said in a statement on his television station, NBN.

French Foreign Minister Jean-Noel Barrot requested an emergency meeting of the United Nations Security Council to discuss Israeli military operations in Lebanon, which he described as “unacceptable.”

“Nothing can justify the prolongation of Israeli military operations in Lebanon and its increasingly deep occupation of Lebanese territory,” Barrot said Sunday on French television BFM TV.

Diplomats said the council meeting might take place Monday afternoon, speaking on condition of anonymity ahead of a formal announcement.

The Israeli military’s Arabic-language spokesperson, Avichay Adraee, posted photographs on X showing Israeli troops walking outside the castle, and Defense Minister Israel Katz wrote on X that they raised an Israeli flag over the castle. Israeli troops previously captured the castle in 1982 and held it until they withdrew from Lebanon in 2000.

“Twenty six years after the withdrawal from the security zone in Lebanon, the Israeli flag has returned to fly on the peaks that overlook the Galilee towns,” Katz said Sunday at a memorial ceremony for Israeli soldiers killed in its previous occupation of southern Lebanon.

Katz said Israel intends to hold the castle as its troops work to destroy thousands more homes that he says were used by Hezbollah and other military infrastructure in southern Lebanon.