Defense Minister Benny Gantz on Tuesday confirmed that Russian forces opened fire on Israeli jets in May using advanced S-300 anti-aircraft missiles, at the end of an Israeli Air Force attack on targets in northwestern Syria.

The incident was first reported by Channel 13 news a week after the strike on May 13, in which the IAF bombed several targets near the city of Masyaf in northwestern Syria.

“It was a one-off incident,” Gantz told a conference hosted by Channel 13 on Tuesday when asked by Alon Ben David, the reporter who broke the story.

“Our jets weren’t even in the area,” Gantz added, confirming the original report which claimed the S-300 radar did not manage to lock onto the Israeli jets that were leaving the area, and thus did not pose a serious threat to the pilots.

The incident marked the first use of the S-300s against the IAF over Syria. As Syria’s S-300 batteries are operated by the Russian military and cannot be fired without their approval, it was a worrying development for Israel, which has carried out hundreds of airstrikes inside Syria in the course of the country’s civil war and since, targeting what it says are arms shipments bound for Lebanon’s Iran-backed Hezbollah terror group and other Iranian-linked sites.

But Gantz stressed: “I think the situation is stable now.”

Israel has reportedly conducted numerous airstrikes in Syria since the May incident.

The Masyaf area is thought to be used as a base for Iranian forces and pro-Iranian militias and has been repeatedly targeted in recent years in attacks attributed to Israel. Satellite imagery taken after the strike showed that an underground facility had been completely destroyed.

Gantz’s confirmation comes amid a deterioration in ties between Israel and Russia over Moscow’s plans to shutter the Jewish Agency in the country.

Israel has found itself at odds with Russia as it increasingly supports Ukraine amid Russia’s invasion, while seeking to maintain freedom of movement in Syria’s skies, which are largely controlled by Moscow.

The Masyaf area is thought to be used as a base for Iranian forces and pro-Iranian militias and has been repeatedly targeted in recent years in attacks attributed to Israel. Satellite imagery taken after the strike showed that an underground facility had been completely destroyed.

Gantz’s confirmation comes amid a deterioration in ties between Israel and Russia over Moscow’s plans to shutter the Jewish Agency in the country.

Israel has found itself at odds with Russia as it increasingly supports Ukraine amid Russia’s invasion, while seeking to maintain freedom of movement in Syria’s skies, which are largely controlled by Moscow.