Two people have been taken to hospital and three dogs seized after the animals attacked the pair at their home in Chesterfield.
Police and paramedics were called to a house on Boythorpe Road shortly after 7.20pm tonight (Thursday) to reports a man and a woman had been injured by their dogs.
They were both taken to hospital for treatment.
The woman is described as being badly injured while the man is in a less serious condition.
Police have seized three dogs from the house and two will be destroyed. The other dog is being kennelled while investigations continue.
Witnesses or anyone with information should call 101, quoting reference 942 of May 25.