Metropolitan police have shut down the whole area, putting traffic in gridlock as various places shut up shop.
The London Eye is believed to have been closed in light of events.
One Twitter user said: “London Eye has been closed – terrified children crying uncontrollably being comforted by teachers.”
Police have put Westminster in lockdown
Police have closed off Westmister
A spokeswoman for the London Eye declined to comment saying they were unable to comment on the phone.
It according to reports people are stuck on the popular attraction.
More to follow.