who is a complete nutter or a terrorist attack. obviously we don't know at this stage. we have very stringent security measures here. and it would appear that they have largely -- but we're in the middle of the incident. all i can tell you from within the building, it's locked down, is what the leader of the house has already told us and what we're picking up from external news reports from people like yourselves, cnn. >> it's a very disturbing picture we're showing. sir gerald, i would love you to stand by. max foster, the live pictures we're seeing now, aerial pictures showing the car that seems to have crashed into a fence outside of parliament and you see a lot of police surrounding that vehicle. set the scene for viewers not