"The U.S. hit a school and sports hall in Lamerd, Iran, on the first day of its war on the country, using a new, untested weapon made by Lockheed Martin that unleashes an explosive barrage of metal pellets on its target, new reporting finds."

https://truthout.org/articles/us-killed-children-in-iran-using-new-missile-that-scatters-pellets-explosively/

US Killed Children in Iran Using New Missile That Explodes Into Pellets

The PrSM detonates just before contact with its target, exploding into a spray of tungsten pellets.

Truthout