Israel’s airstrike on Al-Tab’een School in Gaza City killed three families whose members are believed to have “disintegrated” due to the intensity of the explosions, the Gaza media office said, Anadolu reports.

At least 100 people were killed and several injured Saturday when Israeli aircraft targeted Palestinians performing fajr (dawn) prayers at the school in the Al-Daraj neighborhood.

The Israeli military claimed it killed 19 fighters from Hamas and Islamic Jihad in the attack, but the two groups strongly denied this.

“The Israeli targeting resulted in the complete loss of 3 families whose bodies have not been found so far,” the media office said in a statement.