A 79-year-old woman was approached by a gang of four males and one of them snatched her handbag from her shoulder causing her to fall to the ground.
She hit her head and received facial injuries and is being treated in hospital.
Police are appealing for information on the robbery which happened at about 5.20 pm yesterday(Fri) at Milan Road, Harehills, Leeds.
The male who grabbed the bag was described as wearing a blue tracksuit with a white hood. Another was wearing a white top with a stripe across the shoulders.
The four were seen to run off along Ashton Road after the incident.
Anyone with information should contact CID 101 or Crimestoppers on 0800 555 111.