Great Northern trains are disrupted between Welwyn Garden City and Finsbury Park. Picture: GTR (Image: Archant)
An electricity supply failure between Welwyn Garden City and Finsbury Park is causing delays on the trains this evening.
The issue has now been recitified by Network Rail - meaning Great Northern and Thameslink train services are running - but disruption is expected on services travelling between Welwyn Garden City and London until 7.30pm.
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