Network Rail and TfL have dismissed reports of a gas leak and said that overground and underground train services are running as normal.
Although four people have been taken unwell at London Bridge Station this morning, the Metropolitan Police has said there was nothing to link the cases at this stage.
More top news
This weekend you can do take a look inside some of London's most iconic buildings.
The family of a father-of-three from East Ham have made a fresh appeal to catch his killer 20 years after he was murdered.
The Metropolitan Police has paid £45,000 in damages in an out-of-court settlement following the 'unlawful arrest' of a black motorist.