we can speak to robert nesbitt who has been reporting from the scene are close by for the last hour. i m joined now by someone who is on westminster bridge at the time this incident happened. take us through what you saw. i was walking across the bridge when suddenly a bus stopped in front of me and every started screaming. i saw a trainer in the road, issue, unfortunately, someone was hit by a car. a body was on the other side of the road. and then another body for the route. we looked at the other side, there is another body lying in the water. any indication at what causes people to be entered? i do see a car come through? i didn t see anything. the first thing i was aware of was people starting to scream and people coming off the bus looking very shocked. there is a lot of confusion and