Israeli soldiers violated on Saturday night the Blue Line that demarcates the border between Lebanon and Israel, announced the army in a statement on Sunday.

It said that three soldiers crossed overnight the border line near the southern town of Kfarkila. Nearby Lebanese troops took up defense positions in the area.

Fifteen minutes later, the Israeli unit retreated from the region after entering ten meters into it. The issue is being discussed with the United Nations Interim Force in Lebanon, added the army communique.

On Tuesday, an Israeli unit crossed the Blue Line near al-Bastra farm in the occupied Shebaa Farms. It entered 20 meters and tossed a smoke bomb in the area.

Israeli troops regularly cross the electronic border fence and sometimes enter Lebanese territory through the U.N.-demarcated Blue Line, which was drawn up following Israel’s withdrawal from south Lebanon in 2000 after a 22-year occupation.