Train derailed automatically Paddington

[JeremyH5]

Is this a thing now? Train passed a red signal and there is a system that automatically derails it?
No passengers involved apparently but could be surely. Sounds odd to me
http://www.bbc.co.uk/news/uk-england-london-365550...

[JeremyH5]

Ah thanks, I had thought it was on main line; obviously not.