Israeli Prime Minister Benjamin Netanyahu and Syrian interim leader Ahmad al-Sharaa have agreed to a ceasefire embraced by Türkiye, Jordan and neighbors, U.S. Ambassador to Türkiye Tom Barrack said Saturday on social media.

"We call upon Druze, Bedouins and Sunnis to put down their weapons and together with other minorities build a new and united Syrian identity in peace and prosperity with its neighbors," he said on X.

At least 638 people have died since Sunday in violence between the Druze and Bedouins in Sweida, according to the Syrian Observatory for Human Rights.

Israel intervened on Wednesday with major strikes in the heart of Syria's capital Damascus, including hitting the army's headquarters.

Sharaa's office on Friday evening pledged to deploy fresh forces to Sweida to break up further clashes in the south, urging "all parties to exercise restraint and prioritize reason."

The UN's International Organization for Migration on Friday said that 79,339 people have been displaced since Sunday, including 20,019 on Thursday alone.

Israel, which has its own sizable Druze community, said on Friday that it was sending support valued at nearly $600,000, including food and medical supplies, to Druze in Sweida.

UN High Commissioner for Human Rights Volker Turk called for an end to the bloodshed and "independent, prompt and transparent investigations into all violations".

The International Committee for the Red Cross (ICRC) warned that health facilities were overwhelmed, with power cuts impeding the preservation of bodies in overflowing morgues.

"The humanitarian situation in Sweida is critical. People are running out of everything," said Stephan Sakalian, the head of ICRC's delegation in Syria.

"Hospitals are increasingly struggling to treat the wounded and the sick, and families are unable to bury their loved ones in dignity," Sakalian said.

The latest violence in Sweida erupted on Sunday after armed members of a Bedouin tribe reportedly assaulted and robbed a young Druze man near the town of al-Masmiyah, along the Damascus-Sweida highway.

(With input from agencies)