 However the driver did not respond to the signals and failed stop his train at the Danger signal, continuing until his train collided with the Thameslink train at the trailing points.The Thameslink train was an eight-coach train consisting of two Class 319 four-coach electric multiple units (EMUs).The Connex South Eastern was also an eight-coach train consisting of a four-coach Class 411 (411602) EMU and a four-coach Class 423 EMU.