London Euston station has been evacuated amid reports of people 'running in panic' and armed police racing to the scene after a 'person was stabbed in a mass brawl.' There have been reports of 'police with guns' and 'panic' at the central London station. Carys Hannah tweeted: 'Got off the train at London Euston & went down the escalator to the underground. 'As soon as I reached the gate, security closed it off. One of them told me there's been a stabbing. 'I really hope the person who was stabbed will be OK.'