Most services are now running in and out of London Euston, following the lineside fire yesterday afternoon that stopped all rush-hour trains. London Overground services are still unable to run on the line, with services to Harrow & Wealdstone suspended until around 1pm.

Virgin Trains is planning a full service, but warned that services “may be busier than usual and could be subject to delays”.

Passengers who failed to travel on Wednesday will be able to use their tickets for travel today, or get a full refund.

London Midland has made the same pledge, and warned: “Some trains may be shorter than normal as many carriages were trapped in sidings overnight while Network Rail carried out repairs.”

No trains were able to run in or out of Euston due to a lineside fire near South Hampstead that damaged signalling equipment.

GWR, the main train operator, said: "As a result of ongoing engineering work in the Bath Spa area fewer trains are able to operate through the station.

"The hourly train service between London Paddington, Reading, Swindon, Chippenham, Bath Spa and Bristol Temple Meads will continue to operate through Bath Spa station in both directions, albeit with some delay."

British rail travel through the ages Show all 30 1 /30 British rail travel through the ages British rail travel through the ages 1875 The general view of St Pancras station in London British rail travel through the ages 1880 The locomotive which plunged off the Tay Rail Bridge into the Firth of Tay after its recovery from the estuary. The disaster occurred when a section collapsed during a storm in 1879 and 75 passengers were killed British rail travel through the ages 1885 An East Coast Express train at King's Cross Great Northern Railway, London British rail travel through the ages 1890 A porter directing a passenger on the platform of a station on the outskirts of Liverpool British rail travel through the ages 1900 Passengers sitting in the observation car on the Llandudno to Llanberis line in Wales British rail travel through the ages 1910 A London and North Western Railway worker in the slip-coach of a train, which detaches at a station that the rest of the train is not stopping at British rail travel through the ages 1914 French people leaving Victoria Station in London on the boat train to Paris, at the start of World War I British rail travel through the ages 1916 A female guard on the Metropolitan railway with her emergency lantern British rail travel through the ages 1925 Holiday crowds at King's Cross railway station, London Getty Images British rail travel through the ages 1928 A young Easter holiday maker tries to reach up to the ticket office window to buy his ticket British rail travel through the ages 1928 The luxurious first class lounge on board a London Midland and Scottish Royal Scot train. Known as the travelling hotel the train has a lounge, bar and private boudoir British rail travel through the ages 1929 Two young women pushing their luggage on a trolley at Paddington station during the holiday rush out of London British rail travel through the ages 1930 A worker sitting astride a locomotive whilst cleaning the boiler British rail travel through the ages 1930 A third class Southern Railway carriage being hoisted at Southampton Docks in Hampshire British rail travel through the ages 1930 The Bennie railplane being demonstrated at Glasgow, Scotland. It consisted of self-propelled passenger cars driven by air screws, suspended from a steel girder British rail travel through the ages 1930 Seven of the new King Class steam locomotives Getty Images British rail travel through the ages 1930 Passengers on the Bennie Railplane in Glasgow; the inventor George Bennie stands at the end of the carriage British rail travel through the ages 1930 Port of London Authority workers unloading a shipment of bananas from a train British rail travel through the ages 1931 London and North-Eastern Railway petrol train in Yorkshire British rail travel through the ages 1931 Railway workers turning the LNER 'Hush Hush' locomotive No. 100000 on a manually operated turntable while a man films the operation with a hand cranked camera British rail travel through the ages 1931 On the Great Western Railway, a film crew film the automatical train control in action British rail travel through the ages 1931 Racing driver Lord Howe driving his Mercedes sports car onto the float at Dover, ready to be hoisted on board the Southern Railway's cross-channel steamer 'Autocarrier' British rail travel through the ages 1933 Passengers making enquiries at one of the new Southern Railway information points on Waterloo concourse British rail travel through the ages 1933 Fireman Blackett of the LMS railway saying farewell to his workmates and officials at Carlisle before finishing duty. He was off to America to assist on the Royal Scot which is touring the USA after appearing at the Chicago World Fair British rail travel through the ages 1935 A steam train crossing the Darwood Viaduct, Cornwall British rail travel through the ages 1937 A group of schoolboys examining a streamlined Coronation Class locomotive of the London, Midland and Scottish Railway (LMS) at Euston Station Getty Images British rail travel through the ages 1938 A member of the Berkhampstead Riding School tests her riding prowess against the Carlisle Express in a field that adjoins the LMS railway at Tring, Hertfordshire British rail travel through the ages 1956 Women seeing off loved ones on a troop train at Woolwich railway station in south London. The men, of the Royal Artillery, are bound for Salisbury Plain for retraining because of the Suez crisis British rail travel through the ages 1968 The 'Flying Scotsman' steam locomotive leaves a station to travel to Edinburgh Getty Images British rail travel through the ages 1972 The Brighton Belle train leaving Victoria Station, central London