The Ladbroke Grove rail crash (also known as the Paddington train crash) was a rail accident which occurred on 5 October 1999 at Ladbroke Grove, London, England. With 31 people being killed and more than 520 injured, this remains the worst rail accident on the Great Western Main Line. This was the second major accident on the Great Western Main Line in just over two years, the first being the Southall rail crash of September 1997, a few miles west in England. Both crashes would have been prevented by an operational Automatic Train Protection (ATP) system, but wider fitting of this had been rejected on cost grounds.