BEIRUT — A U.S. envoy doubled down on Washington’s support for Syria’s new government, saying Monday there is “no Plan B” to working with it to unite the country still reeling from years of civil war and wracked by new sectarian violence.

In an exclusive interview with The Associated Press, Tom Barrack also criticized Israel’s recent intervention in Syria, calling it poorly timed and saying it complicated efforts to stabilize the region.

Barrack is ambassador to Turkey and special envoy to Syria, with a short-term mandate in Lebanon. He spoke in Beirut following more than a week of clashes in Syria’s southern province of Sweida between militias of the Druze religious minority and Sunni Muslim Bedouin tribes.

Syrian government forces intervened, ostensibly to restore order, but ended up siding with the Bedouins before withdrawing under a ceasefire agreement with Druze factions. Hundreds have been killed in the fighting, and some government fighters allegedly shot dead Druze civilians and burned and looted homes.

Neighboring Israel intervened last week on behalf of the Druze, who are seen as a loyal minority within Israel and often serve in its military. Israel launched dozens of strikes on convoys of government forces in Sweida and struck the Ministry of Defense headquarters in central Damascus.

Over the weekend, Barrack announced a ceasefire between Syria and Israel. Syrian government forces have redeployed in Sweida to halt renewed clashes between the Druze and Bedouins, and civilians from both sides were set to be evacuated Monday.

Envoy: Israel wants to see divided Syria

Barrack told the AP that “the killing, the revenge, the massacres on both sides” are “intolerable,” but that “the current government of Syria, in my opinion, has conducted themselves as best they can as a nascent government with very few resources to address the multiplicity of issues that arise in trying to bring a diverse society together.”

At a press conference later, he said Syrian authorities “need to be held accountable” for violations.

Regarding Israel’s strikes on Syria, Barrack said: “The United States was not asked, nor did they participate in that decision, nor was it the United States’ responsibility in matters that Israel feels is for its own self-defense.”

However, he said Israel’s intervention “creates another very confusing chapter” and “came at a very bad time.”

Prior to the violence in Sweida, Israel and Syria had been in talks over security matters, while the Trump administration had been pushing them to move toward full normalization of diplomatic relations.

When the latest fighting erupted, “Israel’s view was that south of Damascus was this questionable zone, so that whatever happened militarily in that zone needed to be agreed upon and discussed with them,” Barrack said. “The new government (in Syria) coming in was not exactly of that belief.”

The ceasefire announced Saturday between Syria and Israel is a limited agreement addressing only the conflict in Sweida, he said. It does not address broader issues including Israel’s contention that the area south of Damascus should be a demilitarized zone.