More than 60 Palestinians have been martyred in Israeli strikes across the territory overnight, according to the Palestinian Health Ministry in Gaza.
The ministry said dozens of people were also wounded in "intense" Israeli strikes and artillery bombardments across Gaza.
The strikes hit the southern cities of Khan Yunis and Rafah, as well as areas around Gaza City, the media office said.
It said two hospitals, a girls' school and "dozens" of homes were among the targets.
Five Palestinians have been martyred by Israeli fire in the occupied West Bank on Sunday, according to the Palestinian Health Ministry.
A ministry statement said a 14-year-old boy lost his life to Israeli army fire in Ein Sultan refugee camp in Jericho city.
According to the state news agency Wafa, the boy was shot in the chest by Israeli forces during a military raid in the camp.
World Health Organization (WHO) Director-General Tedros Adhanom Ghebreyesus described Gaza situation as a "tragedy" reiterating his call for a ceasefire.
Emphasising that there is a "major humanitarian crisis" in Gaza following the attacks, Ghebreyesus said on X: "Today we mark 100 days of a tragedy."
"More than 24,000 Gazans killed — 70% women and children; more injured, many grievously," he said.
