A man and woman have been taken to hospital with serious injuries after a suspected attack by an American XL bully dog.
Police believe the woman fell from the window of a flat where the attack began.
Nottinghamshire police seized a dog after reports it had attacked a number of people on Friday night.
Officers were called to the Hickling Court area of Mansfield shortly after 11pm after reports a large dog had attacked people and was on the loose.
The dog, believed to be an XL Bully type, was subsequently seized from a nearby property and taken to secure kennels.
A 38-year-old man and a 24-year-old woman were arrested on suspicion of allowing a dog to be dangerously out of control.
Police said the injuries sustained were not believed to be life-threatening and added an investigation was ongoing to establish the full circumstances.
American XL bully dogs are being added to the list of banned breeds from 31 December.
Witnesses, or anyone with any information about this incident, are asked to contact Nottinghamshire police on 101. Alternatively, information can be given anonymously by calling Crimestoppers on 0800 555 111.
