A fire under a major London rail junction is causing travel chaos this morning.
The fire broke out under lines near London Bridge station and caused trains entering and leaving the busy hub to stop.
Footage posted to social media showed a major emergency service response in the Southwark area and a thick column of smoke rising above the capital.
The fire started on Union Street, but it is still unclear which building was affected.
Services on the Jubilee Line, which runs through Southwark and London Bridge stations, have been partly suspended.
Transport for London has warned of serious delays and said trains will not serve stations between Green Park and Canary Wharf.
Nearby metro stations were evacuated.
A man who was having lunch with his mother said he heard what could have been an explosion before the fire started.
He told Metro.co.uk: ‘We heard some sort of relatively loud bang and then saw smoke rising everywhere with a noxious, poisonous smell.
“We evacuated – with everyone in the restaurant – and saw part of a building on fire.
“I don’t know where the fire came from, but there was definitely a loud noise and rubble that looked like there had been some kind of explosion.”
Network Rail has confirmed that services are affected due to a fire near the tracks between Waterloo East and London Bridge.
The Ewer Street Junction, four lines taking Thameslink and South Eastern Railway trains to and from the capital, has been completely blocked by the fire and major delays are expected to continue.
A spokesperson said lanes would need to be inspected once the fire is out before services can resume.
The departure board for London Bridge rail services showed major disruption.
A London Fire Department spokesperson said: “Six fire engines and around 40 firefighters were called to a fire on Union Street in [Southward].’
A British Transport Police spokesperson said: ‘Southwark station is closed and a cordon is in place on America Street and Great Suffolk Street.
Contact our press team by emailing us at firstname.lastname@example.org.
For more stories like this, check out our news page.