A woman was left with severe bruising and suspected broken ribs following a late night assault by two men in Cotmanhay.
The 44-year-old was in Portland Road sometime between 11pm and midnight on Sunday, May 5 when she was approached by the men.
They punched her and she fell to the floor. They then kicked her in the stomach and back.
Police are appealing for witnesses to the incident. Anyone with information should call Derbyshire police on 101 or Crimestoppers on 0800 555 111.