Delays at London Paddington train station have now been cleared, following two days of disruption.
Services to Heathrow Airport were suspended and other services were cancelled on Thursday after two fires caused signalling problems.
Trains are now running normally to and from the station.
More top news
Tube bosses have made a new offer to drivers - to try to break the deadlock over the launch of the new Night Tube service
In an interview with ITV News, the Mayor said his 'sympathies were with the PKK' - a proscribed Kurdish terror group
Martin Stew has the forecast: