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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Early mist and fog clearing to make way for a fine and sunny day
Another fine and dry day, once any early fog patches clear, with largely sunny skies.
Protesters gathered outside the Library of Birmingham following the announcement the £189 million building will now be closed on Sundays