A “CRITICAL incident” has been declared as cops swarm near a Tube station and arrest a man.
Hainault Station, east London, has been locked down as officers carry out an urgent investigation nearby.
Cops have launched an investigation in east LondonTwitter/dimerz100 Twitter/petekingdomIt is not yet clear what has happened[/caption] A police helicopter is circling the areaTwitter/petekingdomA police helicopter appears to have been deployed and is circling the area in Redbridge, near Essex.