The fighting prompted concern from Druze residents of the Israeli-occupied Golan Heights, and a statement from the Israeli army, which pledged to "prevent Hader from being harmed or occupied".
The PA's foreign ministry charged in a statement on Saturday that Israel's announcement that it would defend the village of Hader was actually a forced reversal of Israeli policy.
Quneitra province in Syria, where Hader village is located, is particularly sensitive for Israel because it lies next to the Golan Heights area that Israel captured from Syria in 1967.
Hundreds of Syrians demonstrated inside the occupied territories off the town of Hadar, which has been subjected, since the dawn, to a violent terrorist attack launched by al-Nusra and backed by the Israeli occupation entity from al-Tuloul al-Homr area that is adjacent to the Israeli-occupied Palestinian territories, local sources in the Occupied Golan told SANA.
The Nusra Front a year ago changed its name to the Fateh al-Sham Front and stated it had cut ties with al-Qaeda, though most analysts believe the two organizations are still linked.
The Israel Police said as part of the general police preparation at the Golan Heights, forces were deployed and stationed at major intersections in the north.
In a statement, the IDF said that the situation along the border and in Khader was "under control".
Generally speaking, Israel has made it a priority to support Islamists over the Syrian government.
Several dozens of them cut the border fence and crossed over in a bid to reach Khadr and defend it before they were apprehended and brought back by Israeli troops.
In June, Syrian military sources said Israel's airstrikes on the Golan Heights coincided with a push by Al-Nusra terrorists against army positions, which was aborted.
But the Jewish state has been careful to avoid actually being pulled into the conflagration.
The rocket attacks are also believed to be coordinated, with Israel always holding the Syrian government accountable and using them as a pretext to respond even though the projectiles always land in open fields.
Speaking from London, Israeli Prime Minister Benjamin Netanyahu said "we safeguard our borders". Israeli Druze attempted to help as well, as they broke through the border fence in an attempt to help their compatriots in the battle.