An Israeli F-16 jet takes off on December 9, 2014 at the Ovda airbase in the Negev Desert near Eilat, southern Israel.
Syria's air defence systems downed an Israeli F-16 jet after Israel's air force launched strikes inside the neighbouring country, in a serious escalation of tensions.
The Israeli military called the drone a "severe and irregular violation of Israeli sovereignty" and said Iran was "playing with fire". An Israeli Apache helicopter was able to, after detecting it "early on" and placing it under surveillance, said the IDF.
Iran's involvement in Syria in support of President Bashar Assad in a almost seven-year-old civil war - including the deployment of Iran-backed forces near the Israeli-occupied Golan Heights - has alarmed Israel, which has said it would counter any threat. Hours earlier Israel said it had downed an Iranian drone that had infiltrated its airspace. With the threat of Hezbollah, an Iranian surrogate, in Lebanon, Israel is unlikely to sit by and allow the Iranians to entrench themselves just across Israel's northern border. And it all happens on one morning.
The military says it has the drone in its possession.
Following the most serious confrontation between Israel and Iran since Syria's civil war began in 2011, Prime Minister Benjamin Netanyahu vowed to prevent Tehran from establishing a threatening military presence in the Arab state.
Moscow expressed its concerns over Saturday's developments, warning against attacking its interests in Syria.
"We urge all sides to exercise restraint and to avoid any actions that could lead to an even greater complication of the situation", the ministry said in a statement.
US Secretary of State Rex Tillerson is expected to visit the region in the coming week to discuss Syria and other issues, and is scheduled to visit Jordan, Turkey, Lebanon and other countries. The early successes of rebel forces pulled Russian Federation into the fray to support the Syrian dictator.
Israel struck targets inside Syria on Saturday after intercepting what it said was an Iranian drone entering its airspace from Syria, which it labelled an "attack".
Conricus declined to give details on the drone's presumed mission or whether it was armed. It is believed to be the first time Israel has lost a jet in the Syrian conflict.
Syrian President Bashar al-Assad's forces have downed an Israeli jet, could alter military calculations for Israel, where it until now had a relatively free hand to act.
The senior commander said the Zionist regime has been created by the USA and the United Kingdom, adding the Islamic Republic of Iran began to inflict heavy blows on the U.S. since early years of the Islamic Revolution.
Israeli media said the jet crashed in northern Israel.
A military statement said in Tel Aviv that twelve targets, including three Syrian aerial defence batteries and four other targets that are part of Iran's military establishment in Syria were attacked. "The IDF is ready and capable to inflict a heavy price on anyone that attacks us. However, we are not looking to escalate the situation".
The regime said it intercepted the missiles and destroyed a lot of them, according to SANA.
The Israeli military declined comment.
Israel then launched a second bombing raid in Syria.
Authorities also accused Syria in November of violating the 1974 ceasefire agreement by "conducting construction work" in the northern part of the Golan Demilitarized Zone.
Netanyahu said he had spoken by telephone with Russian President Vladimir Putin and that they agreed Israel-Russia military coordination in regard to Syria would continue.
Syrian President Bashar al-Assad's regime recently intensified airstrikes on rebel-held areas such as the northwestern Idlib province, prompting tens of thousands of civilians to flee their homes, according to United Nations officials.