Israel struck at Syrian army artillery positions on Wednesday near the Israeli-occupied Golan Heights. The military said it was in retaliation for at least two rockets fired at its forces from Syria the previous day.
The Israeli strikes came before an attack on Israeli forces by Hezbollah which killed two soldiers and injured seven.
The escalation of violence on Israel’s northern border comes ten days after an Israeli strike in Syria.
The attack on territory controlled by Syrian government forces killed a senior Iranian military figure and several Lebanese Hezbollah fighters.
Last week supporters of the militant group turned out in southern Lebanon as some of the funerals were held.
Among those who died was Jihad Mughniyeh, whose father, a late Hezbollah commander, died in a bombing in Damascus in 2008.
It’s not clear what role the son played but his death was a symbolic blow to the Shi’ite militant group.
Last week also saw the funeral held in Tehran for the Revolutionary Guard general killed in the Israeli strike on a Hezbollah convoy.
Iran vowed to respond, saying the attack had crossed “red lines”.
Washington has now urged all sides to avoid escalating the conflict.