Israel, bent on halting any transfer of weapons to Lebanon's Hezbollah, has bombarded a position of the powerful Shi'ite group on the Lebanese-Syrian border.
"Two Israeli raids hit a Hezbollah target on the border of Lebanon and Syria" on Monday night, a Lebanese security source told AFP.
Lebanon's National News Agency said the raids struck outside the border town of Nabi Sheet, a Hezbollah bastion where its fighters are suspected of maintaining a weapons store and training camp.
Residents told AFP they saw flares light up the sky ahead of the raids, which shook their houses.
They said they heard planes flying low and that the target appeared to be a Hezbollah position in the nearby mountains.
There was no official comment on the raids from Hezbollah, the Lebanese government or Syria, although the army said there had been Israeli violations of Lebanese airspace.
Hezbollah is an arch-enemy of Israel, and has sent thousands of fighters across the border to aid Syrian President Bashar al-Assad's regime as it battles Sunni-led rebels.
Syria has long provided arms and other aid to Hezbollah, and served as a conduit for Iranian military aid to the movement, which battled Israel to a bloody stalemate in a brief 2006 war.
Israeli officials from Prime Minister Benjamin Netanyahu down refrained from commenting specifically on Monday night's reported raid although they confirmed a policy of interdiction of suspected arms deliveries to Hezbollah.
"We are doing everything that is necessary in order to defend the security of Israel," Netanyahu said on Tuesday.
"We will not say what we're doing or what we're not doing."
