update : An unexpected and rare result of the overnight Israeli airstrikes on Syria, which left as many as six Syrian civilians and an equal number of troops dead, via the BBC:

A stray Russian-made missile apparently launched by Syria hit the self-declared Turkish Republic of Northern Cyprus overnight, officials say. Foreign Minister Kudret Ozersay said the air defence missile was thought to have been launched during suspected Israeli air strikes on Syria. The projectile struck a mountainside north of Nicosia, 225km (140 miles) from the Syrian coast, sparking a fire.

Part of a missile officials say could be a Russian-made S-200 that landed in Northern Cyprus, via Sky News

During the middle of the night air raid which involved Israeli jets reportedly firing from over Lebanese airspace in what's being considered the largest Israeli attack this year, the Syrian military said it intercepted multiple inbound missiles.

Footage from the resulting fire after the errant missile slammed into a mountainside in Cyprus:

Reports suggest it was a Soviet-era S-200 surface-to-air missile previously supplied by Moscow that struck some 12 miles north of Nicosia in the Turkish-occupied part of the country, or the Turkish Republic of Northern Cyprus.

* * *

Hours after Israeli reports said Russian S-300 anti-air defense systems in Syria came online and were "operational," the Israeli military allegedly launched a major aerial attack on Syria in the middle of the night Sunday.

Massive explosions rocked Damascus overnight, via Al-Masdar News

According to a breaking AFP report:

Syria said Israeli jets attacked several military sites near the capital Damascus and the central city of Homs early Monday, killing several people. State news agency SANA said that Syrian air defense had intercepted several of the incoming missiles that were fired from Lebanese airspace.

Syria reported its aerial defense systems were active during the assault, which further caused damage to multiple civilian homes in the Damascus suburb of Sahnaya, according to SANA.

The major Syrian military airport at Mezzeh on the western edge of Damascus was also a reported target in the attack.

Video from #Damascus allegedly showing #Israel Air Force jets after striking targets pic.twitter.com/5u4YJek6z7 — Anna Ahronheim (@AAhronheim) June 30, 2019

Though total casualties are still unknown, one well-known journalist from Damascus, Danny Makki, is reporting at least 4 civilians killed — including a baby — and over 20 injured.

Some missiles landed in residential areas. pic.twitter.com/iexiOPO3zp — H.K 🇸🇾 (@Ibra_Joudeh) June 30, 2019

Syrian state media published footage showing missile intercepts of inbound projectiles.

It is also as yet unknown if the S-300s were active during the air strikes, however, Israeli media reports suggested that newly installed S-300s at several sites as well as Iranian troop presence was a prime cause behind the Israeli action, despite the Israeli Defense Forces (IDF) neither confirming nor denying the strikes:

The reported strikes came just hours after an Israeli satellite imagery analysis company said Syria’s entire S-300 air defense system appeared to be operational, indicating a greater threat to Israel’s ability to conduct airstrikes against Iranian and pro-Iranian forces in the country. Until now, only three of the country’s four surface-to-air missile launchers had been seen fully erected at the Masyaf base in northwestern Syria. Israel has threatened to destroy the S-300 system if it is used against its fighter jets, regardless of the potential blowback from Russia.

Journalist Danny Makki called the overnight air strikes "certainly one of the biggest Israeli attacks on Syria this year" - given that two provinces were targeted, as well as multiple installations and a civilian neighborhood being hit.

Really hard to portray these attacks on #Syria as purely #Israel vs #Iran when most of the people killed or wounded are Syrian soldiers or on some occasions civilians. — Danny Makki (@Dannymakkisyria) June 30, 2019

developing...