Lebanese security officials say two rockets have hit a Beirut neighborhood that is a stronghold of Hezbollah militants.
Reports say the rockets landed in the southern part of the Lebanese capital Sunday, wounding at least three people. It was not clear who was responsible for firing them.
The rocket attacks came a day after Hezbollah chief Hassan Nasrallah vowed his group will not stand by while the neighboring government of Syrian President Bashar al-Assad is attacked.
Nasrallah said in a speech Saturday that Hezbollah is fighting in Syria to protect Lebanon from the threat of radical Islamists. It was the first time Nasrallah has publicly confirmed Hezbollah's fighting presence in Syria.
The speech was given as Syrian troops and Hezbollah fighters carried out the heaviest barrage of gunfire in a week-long battle to re-take the strategic town of Qusair from rebel fighters.