The military yesterday said it carried out the strike after troops saw "a group of armed terrorists" approach the border with an explosive intended to target Israeli troops. It said that Israeli aircraft "targeted the squad, preventing the attack."
It did not offer any casualty figure for the strike.
Iran's state-run, English-language satellite news channel Press TV later reported four people had been killed in an Israeli airstrike in the Golan Heights, without elaborating.
No one immediately claimed responsibility of the attack launched from inside Syria, which has been in the grips of a civil war since 2011. Syrian state media did not immediately report on the strike.
Israeli troops also have responded to occasional mortar fire from Syria. Israel says some of the attacks may have been accidental spillover, while others have been intentionally aimed at Israeli civilians and soldiers. It has always held Syria responsible for any cross-border fire.