In the early evening of Thursday 8 August 1996, a Class 321 passenger train operated by Network SouthEast travelling from London Euston on the West Coast Main Line Down Slow line at around 110 km/h (68 mph) passed a signal at danger. Having applied the brakes it eventually stopped 203 m (222 yards) past the signal and was traversing the junction between the Down Slow line and the Up Fast line.