BBC and Daily Mail reports with DM having vid and pictures at link below.
Leytonstone Tube stabbing a 'terrorist incident'
24 minutes ago
From the section London
BBC
http://www.bbc.com/news/uk-35018789
A stabbing at a Tube station in east London is being treated as a "terrorist incident", the Met Police has said.
Police were called to reports of people being attacked at Leytonstone station just after 19:00 GMT.
A man was arrested after being Tasered by police. One man suffered serious knife injuries while two others received minor injuries.
Detectives from the Metropolitan Police's Counter-Terrorism Command are now investigating the incident.
The Met said the suspect was reportedly threatening other people with a knife.
This link has pics and vid.
http://www.dailymail.co.uk/home/index.html