Fatalities in last 24 hours come amid public anger over mistaken killing of three hostages by Israeli forces

• Israel-Gaza war: live updates

Airstrikes in the Gaza Strip have killed at least 100 people over the last 24 hours, as Israel’s leadership faces growing international pressure for a ceasefire and calls at home to resume hostage negotiations after the Israeli army shot and killed three men kidnapped by Hamas.

The health ministry in the Hamas-run Palestinian territory said on Sunday that at least 90 people had been killed by Israeli bombardment in the Jabalia camp in the north, and another 12 had died in bombings in the central city of Deir al-Balah, as fighting was reported in several parts of Gaza.

Deaths of Hani Jnena, 32, wife and daughters aged 2 and 4 led NGO to call for Biden to demand Israeli accountability

A contractor for the US Agency for International Development (USAid) in Gaza was killed with his wife and two daughters aged four and two in an Israeli airstrike in November, his employer said on Saturday.

“We are deeply saddened to confirm the tragic loss of our colleague, Hani Jnena (33), along with his family in Gaza, including his wife, Abeer (32), and their two young daughters, Mariam and Zayna, aged 4 and 2,” the non-profit organization Global Communities, which partners with governments and private-sector entities for humanitarian work, said in a statement.

IDF identifies hostages killed as Yotam Haim, Alon Shamriz and Samer El-Talalqa, saying they were mistakenly believed to be a threat

• Israel-Gaza war – live updates

The Israeli military has said that its troops shot and killed three hostages being held by Hamas after mistakenly identifying them as a threat during fighting in a battle-torn neighbourhood of Gaza City.

The announcement on Friday came amid heavy fighting across the embattled territory that led to an influx of dead and wounded into hospitals in Deir al-Balah, Khan Younis and Rafah.