A major disruption on the UK's rail network has caused delays on at least nine lines on Friday morning.
National Rail said the issue was due to a "nationwide fault" with the radio system used between train drivers and signallers that has now been fixed.
The Elizabeth line, Gatwick Express, Great Northern, Northern, ScotRail, Southeastern, Southern, South Western Railway and Thameslink services have all been affected
This includes delays to journeys in and out of some of England's major transport hubs - such as Manchester Piccadilly, London Paddington and Southampton Central.
Travel expert Simon Calder told BBC Radio 5Live that Friday morning had been "a miserable rush hour for a lot of people ".
National Rail said the issue appears to be a fault with the onboard GSMR radio system, which is used to communicate in case of emergencies
Am I being unreasonably suspicious or cynical or paranoid to wonder if these IT problems, such as those which hit hospitals earlier in the year, might be down to sone hostile power such as Russia, China or even N Korea?
There’s more than one way to bring a country to its knees isn’t there?
