A major London train station has been closed with police on the scene after reports of a "suspected gas leak".
Farringdon railway station was evacuated after a "small number" of passengers complained of feeling ill on Thursday morning.
British Transport Police were called to the scene along with paramedics and firefighters.
A spokesperson for the force said: "Officers were called to Farringdon station at 9.42am today (30 April) following reports of a suspected gas leak in the station, with a small number of passengers reporting feeling unwell.
"Officers are in attendance, alongside the ambulance service and the fire brigade, and the station has been evacuated while enquiries are conducted."
London Fire Brigade said it was responding to the incident. It wrote, in a posting on X: "Two fire engines, two fire rescue units and specialist officers are in attendance.
"The Brigade is working alongside partners at the scene. People are advised to avoid the area at this time."
National Rail said that "emergency services are dealing with an incident" and no Elizabeth line or Thameslink "trains will stop at this station". It added that "major disruption is expected" until 5pm.
The disruption means "all routes on the Thameslink network will be subject to major delays and cancellations".
Emergency services had closed part of the line, but "although some lines have now reopened, trains will still continue to not call at Farringdon".
Passengers have been "strongly advised to delay travel until later this afternoon".
Tickets can be used on alternative London Underground, rail and bus services.
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(c) Sky News 2026: London station evacuated after 'number of passengers complained of feeling ill'
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