By Arielle Domb
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Commuters taking the London Overground may face delays on their way to work this morning.
A fault with the signalling system between Clapham Junction and Willesden Junction has disrupted some lines. Mildmay trains running between Clapham Junction and Stratford may be cancelled or delayed by up to 15 minutes.
Suffragette trains running between Gospel Oak and Barking Riverside may also be cancelled or delayed following an earlier shortage of train crew.
Follow the latest updates below…