March 25, 2026

When the M825-series 155mm artillery projectile bursts, expelling its felt wedges containing white phosphorus, it leaves a distinctive knuckle-shaped plume. That is how Human Rights Watch (HRW) researchers said they were able to verify that Israel was again using the notorious weapon over south Lebanon, reigniting accusations that it is breaking the laws of war.

The New York-based rights group said it had verified and geolocated eight images showing airburst white phosphorus munitions exploding over residential areas in the southern Lebanese town of Yohmor in the opening days of Israel’s assault during the war on Gaza.