Initial reports suggested that anywhere between 11 (including 5 infants) and 70 were killed.[78][79] Later reports stated that 30 people died in the attack.[80] The United Nations confirmed the witnesses' testimonies in a report published on January 9.[81] The report, by the U.N. Office for the Coordination of Humanitarian Affairs said the attack was "one of the gravest" in the conflict,[82] and called an investigation into the attack.[83] The report offered no evidence that the attack was deliberate, and Allegro Pacheco, a senior U.N. official in Jerusalem who helped draft the report on the attack for OCHA, added: "We are not making an accusation of deliberate action" by the Israelis.