Jonathan Whittall, who heads the UN’s humanitarian agency (OCHA) in Gaza, has responded to Israeli claims that there was “no evidence to support claims of execution” in the killings of Palestinian paramedics last month, Al Jazeera reports.

“Without accountability, we risk continuing to watch atrocities unfolding, and the norms designed to protect us all, eroding,” Whittall said in a statement.

“Too many civilians, including aid workers, have been killed in Gaza. Their stories have not all made the headlines.”