Network Rail told ITV News that there is no gas leak at London Bridge station and that train services are running as normal.
They added that four people were taken ill but the incidents were not related to each other.
More top news
A man who shot and killed his wife before posting a photo of her body - and a confession - to Facebook has been found guilty of murder.
If Number 10 announces it plans to hold a vote on airstrikes in Syria, the planners in the MoD might as well get to work straight away.
The number of children dying from cancer in the UK each year is falling, according to new figures from a major charity.