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."
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It will be turning cloudier from the west in the afternoon.
Mostly dry, bright and mild. Some rain during the evening.
Police are trying to find five men suspected of being involved in disorder during a football match between Coventry City and Sheffield.