Israeli officials have directed operations in southern Beirut suburbs as tensions continue along the border with Lebanon.
The move comes hours before a UN Security Council gathering to discuss the situation.
Many families have already left the Dahiyeh area in recent hours.
Israeli sources point to ongoing breaches of the ceasefire agreement and incidents affecting civilians on their side of the border.
They say these steps aim to address threats from Hezbollah positions.
Residents in affected Lebanese neighborhoods report hearing activity in the sky and seeing plumes of smoke rise from certain spots.
Local reports mention people moving away from the area for safety.
This development adds to months of back-and-forth exchanges across the Israel-Lebanon border.
Both sides have traded actions since the original ceasefire took hold earlier this year.
At the same time, ground forces remain active near the border, with images showing military vehicles in position.
The UN meeting is expected to bring together diplomats to look for ways to ease the situation and support longer-term calm.
Officials in Israel say they will keep a close watch on any further moves from the other side.
Lebanese authorities have called for restraint as the Security Council prepares to meet.
The coming days may show whether these latest steps lead to more talks or further strain the fragile pause in fighting.
