Displaced people from southern Lebanon are pictured at a shelter in Qaraoun, west of the Bekaa area, Lebanon, on Oct. 1, 2024. (Photo by Taher Abu Hamdan/Xinhua)

Lebanese Prime Minister Najib Mikati and Humanitarian Coordinator for Lebanon Imran Riza on Tuesday launched a 426-million-U.S. dollar Flash Appeal to mobilize urgent resources for civilians affected by the escalating conflict and resulting humanitarian crisis in Lebanon.

The announcement occurred at the Serail in Beirut, which was attended by UN agencies, member states, the international community, and local and international partners.

"I urge all nations to step up their support in providing humanitarian aid and to use their influence to help bring an end to the violence," Mikati said, calling for immediate action from the international community.

The Flash Appeal seeks to assist approximately 1 million people affected by the ongoing clashes between Israel and Hezbollah by providing urgent needs such as food, basic assistance, shelter, healthcare, water, and municipal services.

"We must act swiftly and decisively to ensure that those affected by this crisis receive the essential support they require. All parties must uphold their obligations under international humanitarian law to protect civilians and prioritize humanitarian access," Riza said.

The recent escalation caused an unprecedented surge in casualties and displacement in Lebanon, with more than 1,000 people losing their lives over the past two weeks and around 1 million people displaced from their villages and towns since last October, according to the tally by the Lebanese Health Ministry.

Meanwhile, the United Nations International Children's Emergency Fund (UNICEF) launched an appeal for 105 million dollars for Lebanon for the next three months.

"The escalation in hostilities is catastrophic for all children in Lebanon," said UNICEF Representative in Lebanon, Edouard Beigbeder, in a statement. "UNICEF is responding to the most critical and immediate needs of children in Lebanon but requires urgent support to sustain and expand its response."

The statement said that the funds are urgently needed to deliver critical supplies to children in desperate need, maintain Lebanon's essential services, including safe water, psychosocial support, and learning, and prepare for any potential further escalation in hostilities.

More than 100 children have been killed since Oct. 8, 2023, with more than half of the deaths occurring in the past week alone, while more than 300,000 children have been displaced from their homes, the UN body said, citing statistics from the Lebanese Health Ministry.

Confrontations between Hezbollah and Israel have intensified following Israel's announcement to broaden its war objectives to include the return of northern residents, who were evacuated due to attacks by Hezbollah in Lebanon.

Hezbollah, an ally of Hamas, has launched barrages of rockets at Israel since last October in solidarity with Hamas and the Palestinians in the Gaza Strip.