Israel says it hit an ambulance used by Hamas. Gaza officials say it was carrying the wounded.

Israel’s military said it carried out a deadly strike in Gaza City on Friday on an ambulance that was being “used by a Hamas terrorist cell.” Palestinian health authorities say the vehicle was part of a convoy carrying wounded people from Gaza’s besieged north to the south.

At least 15 people were killed and dozens injured in the strike, which unfolded outside Gaza City’s Al Shifa hospital, Palestinian health ministry spokesperson Ashraf Al-Qudra said in a televised interview aired by Al Jazeera. The Palestine Red Crescent Society, a humanitarian organization, corroborated the information in a statement.

NBC News was not immediately able to independently verify the death toll or the circumstances surrounding the strike.