Horror video captures two firefighting helicopters colliding mid-air in Greece, killing two

Heart-stopping footage captures the moment two firefighting helicopters collided in mid-air while battling a raging wildfire west of Athens. The terrifying video shows one helicopter clip the rotor of another before the aircraft erupts into flames and crashes to the ground. The Hellenic Fire Service confirmed two crew members died in the horrific accident, while two others miraculously survived. Authorities said a Greek national and a Danish national were killed, while another Greek national and a British national survived the crash.