
The United Nations agency for children says that at least 322 children are reported to have been killed since Israel launched a renewed offensive in Gaza two weeks ago.
Unicef said at least 609 other children were reportedly wounded during the same period.
"The ceasefire in Gaza provided a desperately needed lifeline for Gaza's children and hope for a path to recovery," said Unicef Executive Director Catherine Russell. "But children have again been plunged into a cycle of deadly violence and deprivation."
Israel launched its renewed Gaza offensive on 18 March, blaming Hamas for rejecting a new US proposal to extend the ceasefire and free the 59 hostages still held captive in Gaza.