92 Palestinians have been killed by Israeli attacks across the Gaza Strip since Dawn on Thursday.
In one of the latest attacks -
Israeli airstrikes have targeted the Dar al-Arqam school in northeastern Gaza City.
It was serving as a shelter for hundreds of displaced families.
At least 21 people have been killed, and the death toll is expected to rise.
Hundreds of forcibly displaced families were inside.
Dozens of injured are trapped under rubble, and rescuers are struggling to pull them out.
Some survivors have been transported to al-Ahli Hospital, where medical staff are also struggling with critical shortages of essential medicine.
Women and children made up a significant portion of those sheltering at the school site.
Al Jazeera’s Hani Mahmoud reports from Gaza City.
