An Israeli security source told AFP that an Israeli helicopter carried out the strike but the UN account raised the possibility that drones may have been used.

UN spokesman Farhan Haq said the world body’s peacekeepers “observed two unmanned aerial vehicles flying” from the Israeli-occupied part of the Golan Heights and crossing into Syria.

“An hour later, smoke was observed coming from the general direction of position 30,” said the UN official, adding that the peacekeeping forces then observed the drones flying over the area of “position 30” and again crossing the ceasefire line.

Haq further described the incident as “a violation of the 1974 agreement on disengagement” between the Israeli regime and Syria.

On Sunday, an Israeli military helicopter fired two missiles into Amal Farms in the strategic southwestern city of Quneitra, close to the line separating the Syrian part of the Golan Heights from the Israeli-occupied sector.

Among Hezbollah's dead was Jihad Mughniyeh, the son of an assassinated commander from the group, and Mohammed Issa, a commander responsible for Hezbollah's operations in Syria and Iraq.