There have been a number of examples in past conflicts of misfired Hamas rockets striking Palestinian civilian areas in the Gaza Strip. During the August 2022 flareup between Israel and the Palestinian Islamic Jihad terror group, more than one-fifth of the 1,000 rockets fired toward Israel failed and landed in Gaza, where they caused one-third of the 44 deaths recorded.
It's indefensible that major news organizations immediately took Hamas at its word and posted headlines like "Israel bombs Gaza hospital killing 500" when this is what seems to have actually happened.
My heart goes out to the victims, however many there were, but journalists have to be better than this.