The UN’s humanitarian agency, the Palestine Red Crescent Society (PRCS) and Gaza’s civil defence service have rejected the findings of an Israeli military investigation that concluded the killings of 15 Palestinian medics and rescue workers in Rafah last month were caused by “professional failures”.

“The video filmed by one of the paramedics proves that the Israeli occupation’s narrative is false and demonstrates that it carried out summary executions,” Mohammed al-Mughair, a civil defence official, told Agence-France Presse on Monday, accusing Israel of seeking to “circumvent” its obligations under international law.

Jonathan Whittall, the UN’s humanitarian chief for Gaza, said the investigation did not go far enough. “A lack of real accountability undermines international law and makes the world a more dangerous place,” he said.

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