The main Palestinian rescue service in Gaza has condemned Israel's probe into the killings of 15 medical workers last month, calling it a "fabricated investigation."

The Palestinian Red Crescent called on Monday 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.

The Israeli military said a review into last month's killing of emergency responders in Gaza found there had been "several professional failures" and that a commander would be dismissed over the incident.