Israel was launching air strikes before noon on October 7, killing hundreds of people with those strikes that day alone. Israeli news reports on Sunday morning variously mentioned 800 strikes and more than 16 tons of munitions dropped on the Gaza Strip.
https://www.timesofisrael.com/we-are-at-war-netanyahu-says-a...
On October 8 they cut all imports to Gaza, and cut off the electricity and gas supplies to the entire civilian population. That was probably a war crime by itself, as collective punishment. Palestinian hospitals reported being overwhelmed by Sunday morning. Netanyahu said civilians should all leave Gaza - without opening any exits - and promised to inflict an unprecedented price in response to the attacks.
