Speaking after this afternoon's crash, Nottinghamshire Police issued this statement.
"A police vehicle responding to an emergency call has been in a collision with another vehicle in Nottingham this afternoon.
"A man and a boy have been taken to hospital. The male police officer was uninjured.
"An investigation has begun and is on-going."
More top news
The football club will make history if they beat Manchester United this weekend - and Gary Lineker will present MOTD in his undies.
Remaining generally cloudy with further locally heavy rain or showers expected through Friday morning, drier in the afternoon.
Showers will continue through Friday and may turn locally heavy with a risk of hail and thunder.