Hundreds of ultra-Orthodox Jews were reportedly escorted by Israeli soldiers into Lebanon on Friday to pray at an ancient religious site, a move the Lebanese army condemned as a violation of sovereignty.
Israeli media published images of the worshippers at a venerated burial site along the UN-patrolled Blue Line, which has marked the Israel-Lebanon border since 2000.
The images showed Israeli soldiers alongside those praying.
According to Jewish tradition, the tomb belongs to Rav Ashi, a renowned scholar of Hebrew law from the Talmudic era around the sixth century, while Muslims believe it is the burial site of a venerated sheikh.
The Israeli military did not offer any comment on the incident when contacted by AFP.
Several attempts by Israelis to access the site in recent weeks have sparked arrests and clashes between Israeli forces and ultra-Orthodox groups, according to reports.
In a statement, the Lebanese army denounced the move as a "flagrant violation of Lebanese national sovereignty."
"Members of the enemy forces have allowed settlers to access a so-called religious site in the Al-Abad – Houla region in the south," it said.
"The entry of settlers from the Israeli entity into Lebanese territory is further evidence of the enemy's insistence on violating the relevant laws, international resolutions and agreements, in particular Resolution 1701 and the ceasefire agreement," it added.
A November 27 truce agreement largely halted more than a year of hostilities between Lebanese Islamist group Hezbollah and Israel, including two months of full-blown war in which Israel sent in ground troops.
Israel has continued to carry out strikes on Lebanese territory since the agreement took effect.
Israel had been due to withdraw from Lebanon by February 18 after missing a January deadline, but it has kept troops at five southern locations it deems "strategic".