“Israeli officials say that they executed an aerial strike on a mosque inside Gaza that was being used as a command center”
Of course Hamas was trying to hide operations in and under a mosque. I am sure they are doing the same thing with schools, hospitals and residential buildings too.
They are cowards and think nothing of using any human biengs as human shields. When it is their own people and those people get killed, Hamas just calls them martyrs.
According to the ground plans shown at the link, there was a passage leading from the mosque to a nearby kindergarten.