Passengers travelling to Gatwick Airport this morning are being advised to avoid trains from London Victoria and Clapham Junction and use alternative routes instead following a fire close to Victoria station.
All train lines have now re-opened, but Gatwick Express said disruption will continue until 2.30pm.
It said its tickets will be valid on other routes, including on Thameslink from London Bridge or other Southern services.
Gatwick Express said passengers should allow an extra 60 minutes for their journey.
