Three people were killed when a helicopter crashed shortly after taking off on the Greek island of Sifnos. Eyewitness video verified by Reuters showed smoke billowing from the crash site. ⁣ ⁣ The pilot and two passengers died, while the cause of the crash remains unknown.⁣ ⁣ #Greece #Sifnos #HelicopterCrash #BreakingNews⁣