Hezbollah's role in the Syrian civil war has lead to a heightened state of security in neighboring Lebanon. At least 20 people were killed in August when a car bomb exploded in a Hezbollah stronghold in Beirut. One Hezbollah member was killed and three others were injured in a July ambush at a border crossing near Syria.
Judicial sources told Lebanon's The Daily Star newspaper military investigative Judge Imad Zein issued arrest warrants Tuesday for two Syrian men suspected of playing a role in the July attack.
The newspaper said both men were suspected members of the rebel Free Syrian Army. It said one of the suspects allegedly used Qatari funds meant for rebel support in Syria to carry out the attack on Hezbollah.
Hezbollah holds political office in Lebanon. Its military wing was designated by the European Union as a terrorist organization.
The Daily Star reported Syrian rebels vowed to respond with force to Hezbollah's actions in Syria.