Euston Station has been evacuated as Metropolitan Police officers rushed to the major London train station following reports of a "suspicious package".
Scotland Yard rushed to the scene just hours after Gatwick Airport caused chaos for holidaymakers and the US Embassy in Nine Elms also reported suspicious activity.
The Metropolitan Police said: "We’re aware of reports online about an incident in the vicinity of Euston Station.
"Police cordons are in place as a precaution while officers investigate a suspect package."
Scotland Yard almost immediately confirmed it had conducted a "controlled explosion".
The force added: "A controlled explosion has been carried out by specialist officers and the police cordons have now been lifted. Thank you for your patience."
The announcement came after Transport for London confirmed it had closed the Euston Station as a "precautionary measure".