At the scenepublished at 18:29 GMT
18:29 GMT
Olivia Richwald
Reporter, BBC Yorkshire
Very few details have emerged yet of what happened this afternoon.
I can tell you that there is a large cordon in place which covered three roads close to Tadcaster Grammar School.
We’ve seen two vehicles behind that cordon – one a small pale-coloured car with what looks like a dented front bumper.
The second is larger, perhaps a van or a small bus. It is behind a tarpaulin.
Police remain guarding the scene tonight.
I’m standing next to a police van with flashing blue lights.
We are adjacent to the Tadcaster Grammar School bus park.
The main entrance to the school is not affected by the cordon.
The road is quiet and it’s not a residential area so there isn’t anyone around, except the odd car which is driving up to the road closure signs and turning around.