Our officers were called to a trespass incident near Charlton station at 2am on Wednesday 13 August, after reports of a man on the tracks.
Colleagues from the Metropolitan Police Service and London Ambulance Service are also in attendance. The man is currently still on the scene, and specialist officers are talking to him in order to resolve the situation.
More top news
The mayor claimed 'international despots and criminal rings' were using phoney companies to buy homes in the capital.
Their twisted romance revolved around fictional Facebook characters, and the 8-year-old girl was seen as a threat.
Passengers were forced to jump the ticket barriers to avoid being crushed by the crowd.