Commuters in London are still facing major delays this morning after a fire broke out near the tracks between Clapham and Victoria.
Southern and Gatwick Express trains could not drive to or from London Victoria due to the fire, with lines reopening around 8am after the firefighters left the fire.
But "heavy remaining delays" still remain when commuters were advised to avoid traveling to Victoria at all, Southern said.
Southern Rail added: "General travel times may still be extended by up to 60 minutes."
Nearly 100 of British Airways flights from London airports will also be canceled due to data problems which affected the check-in system.
National Rail said rail services would divert to London Bridge wherever possible, with travelers recommended for Thameslink or other southern services where available.
Tickets can be used for alternative transport on London buses, some Thameslink services and the London Underground.