Guterres described a potentially volatile period that included rocket fire against Israel from Lebanon and IDF standoffs with the Lebanese army.
Erdan warned that Israel "retains the right to take all necessary measures to protect its territory."
The Lebanese citizens threw rocks at Israeli forces, with the soldiers launching tear gas in response.
A court document identified the accused as linked to Hezbollah and their ally, the Amal movement.
Dialogue is taking place between the relevant authorities in order to bring him safely back across the border.
Although Israel and the Lebanese government have generally agreed on "the Blue Line" as a border between the countries, Hezbollah does not recognize this line.
Only one of the suspects is in custody, while the other six are on the run.