israeli chopper crashed in Gaza while trying to rescue injured soldier. 3 Israeli soldiers were killed and 4 among the 7 injured were critical. The military helicopter was from the elite Unit 669 of the Israeli Air Force. Pictures of the crash showed the chopper in a mangled state. IDF attributed the crash to a ‘technical malfunction’- chopper was on a rescue operation. ‘Chopper sent to rescue a soldier who had been shot by Hamas sniper'. Unit 669- known as ‘tactical unit for special rescue’ is an elite group of Israeli Air Force. Unit 669 specializes in combat rescues on land, air, & sea-top-tier in Israeli air force.