Avanti West Coast have scrapped all services - including those to Glasgow - and are asking people not to come to the station following a fire beside a line causing 25,000 volt overhead cables to fall in London.
The "extreme heat" is said to be causing "multiple incidents" across the network, forcing them to halt transport with people being urged to make their journeys after the heatwave has passed.
It comes as the UK has recorded highs of 40C with the Met Office confirming London Heathrow reported a temperature of 40.2C at 12:50pm today adding that it is a provisional record as temperatures continue to soar.
