Israeli strikes in Gaza killed at least 104 people, including dozens of children, the enclave’s health authorities said on Wednesday, marking the deadliest day since the beginning of the ceasefire championed by US President Donald Trump.

Israel’s military said the ceasefire was back on Wednesday after it conducted airstrikes across Gaza, killing at least 81 people, including children and women, according to local hospitals.

The escalation has deepened fears among residents that the already fragile truce could collapse, especially amid growing mistrust between the parties and stalled efforts to move to the second phase o...