Lebanese Hezbollah leader Sayyed Hassan Nasrallah has acknowledged sending a drone aircraft that was shot down last weekend after flying some 55km into Israel.
Mr Nasrallah said in a televised speech that the drone's parts were manufactured in Iran and it was assembled by members of the Shia Muslim militant movement in Lebanon.
He confirmed a statement by Israel's prime minister earlier in the day saying that Hezbollah was behind the drone flight.
"The resistance in Lebanon sent a sophisticated reconnaissance aircraft from Lebanon...It penetrated the enemy's iron procedures and entered occupied southern Palestine," Mr Nasrallah said.
Hezbollah does not recognise the state of Israel.
Tensions have increased in the region with Israel threatening to bomb the nuclear sites of Hezbollah's patron Iran if diplomacy and sanctions fail to stop Iranian nuclear activity the West suspects is meant to develop a weapons capability.
Tehran says it is seeking only civilian nuclear energy.