This picture, taken by passenger Martin Stewart, shows the broken cable hanging over the track in Radlett station yesterday.
Severe delays have been predicted on Southeastern, East Midlands Trains and First Capital Connect until the end of the week.
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Photographer Jeffrey Milstein flew over the capital and took some pretty eye-catching images
London Underground and Southern rail workers could walk out at same time in combined pre-Christmas strike.
Greyhound cross 'Bud' was Battersea Dogs & Cats Home's longest staying resident after being overlooked hundreds of times.