According to the IDF investigation, Master Sgt. (res.) Ido Aviv, 28, of the Yiftah Brigade's 9232nd Battalion, and Master Sgt. (res.) Kalkidan Meharim 37, of the Carmeli Brigade's 223rd Battalion were killed by friendly fire.

According to the probe, they were hit by shelling from an Israeli tank that had opened fire outside of its designated boundaries and hit a building. Several troops, including Aviv and Meharim, were in the building when it was hit. 

The troops were deployed to Gaza just last week.