Bloodshed in Sweida left at least 321 people dead, the Syrian Network for Human Rights said on Friday, in a new toll.

"If Israel feels that a certain leader...is an evident threat to its national security, it will operate," a former Israeli envoy told Newsweek.

The UN human rights chief says his office has received credible reports indicating widespread violations and abuses, including summary executions and arbitrary killings, during the recent violence in the southern city of Suweida.

Hundreds of Druze from Israel pushed across the border in solidarity with their Syrian cousins they feared were under attack. Many then met relatives they had never seen before.

Turkish President Recep Tayyip Erdogan condemned Israel's military actions in Syria, accusing the country of being a "terrorist state" as well as a destabilizing force in the region.

Israel launched rare strikes in Damascus on Wednesday in a campaign it said was aimed at defending the Druze community after days of clashes in the southern city of Sweida.

The head of the United Nations human rights office called on Friday for Syria's interim authorities to ensure accountability and justice for killings and rights violations in the southern city of Sweida.

The Israeli army continued to build a concrete wall on Friday to enforce the fence area separating the Israeli-controlled Golan Heights from Syria.