ISTANBUL: Four military personnel were killed when a helicopter crashed in eastern Turkiye for reasons that remain unclear, the defense ministry said on Thursday. “Four of our heroic comrades-in-arms on board were martyred when our S-70 helicopter crashed in Malatya for reasons that have not yet been determined,” the ministry said in a statement. The wreckage was located and search-and-rescue operations launched immediately after the crash, it added. The ministry offered condolences to the families of the victims.