At least 20 Palestinians were killed in Israeli strikes on the Gaza Strip overnight and into Saturday, according to local health officials. The 20-month war with Hamas has raged on even as Israel has opened a new front with heavy strikes on Iran that sparked retaliatory drone and missile attacks.

Israel’s military campaign has killed over 54,000 Palestinians, mostly women and children, according to Gaza’s Health Ministry, which does not say how many of the dead were civilians or combatants. The offensive has destroyed vast areas of Gaza and displaced around 90% of the population.

Israel's strikes overnight on Friday targeted Iran's nuclear facilities, ballistic missile factories, military commanders and nuclear scientists. Israel's Prime Minister Benjamin Netanyahu said it was the start of a prolonged operation to prevent Tehran from building an atomic weapon.