The Palestinian Red Crescent has called for a "serious investigation" into the killing of 15 aid workers in Gaza last month, a day after the Israeli military admitted "professional failures" and disciplined two officers over the incident.
Younish Al-Khatib, chairman of the Palestinian Red Crescent, said he did not consider the measures taken by the Israeli military, which reprimanded one officer and dismissed another from his position, as sufficient.
"This looks like the management of a company taking administrative measures against its employees who made some kind of a mistake," he told Reuters.
"When you kill 15 medical staff and civil defence personnel, these can't be called 'measures'."
"There has to be proper accountability and a stop to impunity that Israel has taken for granted for so many years," he added.
It issued a formal reprimand to a brigade commander and said the deputy battalion commander who was on the ground when the incident occurred would be relieved of his post over the mix of professional failures and breaches of orders, as well as a failure to fully report the incident.
Among those killed were eight Red Crescent staff members, six from the Gaza civil defence rescue agency and one employee of UNRWA, the UN agency for Palestinian refugees, according to the UN humanitarian agency OCHA and Palestinian rescuers.
They were buried in a shallow grave where their bodies were found a week later by officials from the United Nations and the Palestinian Red Crescent.
A video recovered from the mobile phone of one of the dead men and published by the Palestinian Red Crescent showed uniformed emergency responders and clearly marked ambulances and fire trucks, with their lights on, being fired on by soldiers.
After initially saying the soldiers opened fire on a number of unmarked vehicles that approached their position, the Israeli military confirmed that they were clearly marked as emergency vehicles.
The investigation found, however, that the soldiers had been unable to see clearly in the dark.
The military advocate general's office may now take further action, including possible criminal action against the soldiers, the military said.
Killing of the aid workers drew condemnation worldwide, piling pressure on the military to clarify what had occurred and to hold those responsible to account.
Mr Al-Khatib said the army's investigation, headed by former Major General Yoav Har-Even did not match the seriousness of the incident, which added to a toll of more than 400 Palestinian emergency and health workers killed in the conflict, including 44 from the Red Crescent.
"We don't look at it as a proper investigation," he said, calling for an independent international investigation.
He said the Red Crescent would continue to work in Gaza, the West Bank and Jerusalem.
Separately, Hamas issued a statement saying the Israeli military investigation was "nothing but a blatant attempt to evade full responsibility for this heinous crime.
Gaza's civil defence agency accused the Israeli military of carrying out "summary executions" in the killing of 15 rescue workers last month, rejecting the findings of an internal probe by the army.
"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, said, accusing Israel of seeking to "circumvent" its obligations under international law.
The incident drew international condemnation, including concern about possible war crimes from UN human rights commissioner Volker Turk.
A video recovered from the mobile phone of one of the dead men and published by the Palestinian Red Crescent showed uniformed emergency responders and clearly marked ambulances and fire trucks, with their lights on, being fired on by soldiers.