U.N. peacekeepers in south Lebanon Monday expressed worry over deadly strikes on Lebanese soldiers, which Beirut blames on Israel, despite the army staying away from fighting between Hezbollah and Israel.

"UNIFIL is seriously concerned by numerous strikes on the Lebanese Armed Forces (LAF) inside the Lebanese territories," the peacekeepers said in a statement. The army has reported 19 members killed while on active duty.

A senior U.N. official on Monday called on all parties involved in the conflict in Lebanon to "accept a ceasefire," as new Israeli strikes targeted Beirut's southern suburbs.

"I welcome the ongoing diplomatic efforts to reach a cessation of hostilities and urge the parties to accept a ceasefire anchored in the full implementation of UNSCR 1701," Muhannad Hadi told the Security Council on behalf of U.N. Middle East envoy Tor Wennesland, referring to a resolution adopted in 2006 to end regional violence.

The Israeli military on Monday said it had struck around 25 targets belonging to Hezbollah across Lebanon over a one-hour period.

"Among the targets struck were the Executive Council's command centers, and intelligence control and collection centers, where Hezbollah commanders and operatives were located," the army said in a statement. The strikes took place in Nabatiyeh, Baalbek, Bekaa Valley, southern Beirut and the city's outskirts, it said.

The U.S. has informed Lebanese officials that a declaration of the war's end will be made in the coming hours, Al-Arabiya quoted sources as saying on Monday evening.

Israel and Lebanon have agreed to the terms of the ceasefire agreement and the Israeli Security Cabinet is expected to approve the deal on Tuesday, a senior U.S. official told U.S. news portal Axios on Monday.

Lebanon’s health ministry said 12 people were killed in Israeli strikes on two locations in south Lebanon’s Tyre district on Monday.

The ministry, in separate statements, reported a strike on a road near the city of Tyre that left "six dead and body parts" requiring identification, as well as four wounded, while another left "six dead and four wounded" in the town of Maarakeh.

Israeli Prime Minister Benjamin Netanyahu approved the emerging ceasefire deal with Hezbollah “in principle” during a security consultation with Israeli officials Sunday night, a source familiar with the matter told CNN.

Deputy parliament speaker Elias Bou Saab accused Israel of ramping up its bombardment of Lebanon in order to pressure the government to make concessions in indirect ceasefire negotiations with Hezbollah.

Bou Saab said Monday that the pressure has increased because “we are close to the hour that is decisive regarding reaching a ceasefire.”

Lebanon has suspended in-person classes in the Beirut area for Monday, the education ministry announced on Sunday, citing safety concerns after a series of Israeli air strikes this week.

Education Minister Abbas Halabi announced in a statement "the suspension of in-person teaching" in schools, technical institutes and private higher education institutions in Beirut and parts of the neighboring Metn, Baabda and Shouf districts on Monday "for the safety of students, educational institutions and parents, in light of the current dangerous conditions". Private education institutions must also provide online classes as an option until the end of December, it said.

The Lebanese civilians most devastated by the Israeli war are Shiite Muslims, and many of them believe they are being unfairly punished because they share a religious identity with Hezbollah militants and often live in the same areas.

"This is clear," said Wael Murtada, a young Shiite man who anxiously watched paramedics search rubble after a recent Israeli airstrike destroyed his uncle's two-story home and killed 10 people. "Who else is being attacked?"