Israeli Army (IDF) is ready to use "Sponge Bombs" in Hamas tunnels

Israeli Army (IDF) is ready to use "Sponge Bombs" in Hamas tunnels.
Various types of tunnels are used by Hamas. Some stretch for hundreds of kilometers and descending up to 80 meters deep beneath the 360-square-kilometer coastal strip and its surrounding borders.
Israel may use a new weapon called “sponge bombs” to seal and block off Hamas tunnels.

The Israel Defense Forces (IDF) has been testing the "sponge bombs", which contain no explosives but are used to seal tunnel entrances.
“Sponge bombs” are bombs that create a sudden explosion of foam that expands rapidly and then hardens.

Reportedly, these devices are housed in a protective plastic casing with a metal barrier separating two separate liquids.
During exercises in a simulated tunnel system near the Gaza border in 2021, the Israel Defense Forces (IDF) were observed utilizing these devices.
One of the elite units responsible for operations underground is Yahalom, a specialized commando group from Israel Combat Engineering Corps, often referred to as the "weasels." Their expertise lies in the detection, clearance, and demolition of tunnels.

The device would leave Hamas fighters with no escape and allow Israeli commandos to secure safe routes to travel while searching for hostages.