Lebanese army anti-aircraft guns on Monday fired on Israeli fighter jets violating Lebanese airspace in southern Lebanon, a Lebanese army source said.
"The army's anti-aircraft guns fired at four enemy Israeli planes that were overflying the Marjayoun area in southern Lebanon," the source who requested anonymity said.
"In the past two days the Israeli overflights over Lebanon have intensified, and Lebanon have advised the United Nation about the repeated and increased violations," said the source.
Israel argues that the overflights are necessary, despite their being in violation of UN Resolution 1701 that ended a devastating war in 2006 between Israel and the Lebanese Shiite movement Hezbollah.
According to Israel, the overflights into areas near its border are to monitor what it describes as massive arms smuggling by Hezbollah, which is also a violation of the UN resolution.
Lebanon however is insisting that the UN stop the Israeli overflights.