Saudi Arabia condemned Lebanese Shiite militant group Hezbollah on Monday for its "flagrant" military intervention in the conflict in Syria in support of President Bashar al-Assad.

The cabinet "condemned the flagrant intervention of Lebanon's Hezbollah" in Syria, according to a statement carried by the state SPA news agency.

Fighters from Hezbollah openly spearheaded a 17-day assault on the Syrian town of Qusayr near the Lebanese border which culminated with its recapture from the rebels last Wednesday.

Saudi Arabia is the largest of the six members of the Gulf Cooperation Council, which warned earlier this month that it would adopt measures against the Iran-backed group over its intervention in Syria.

The Damascus government accuses the kingdom and neighbouring Qatar of arming the rebels.