An 84-year-old woman suffered a broken hip when she was pulled to the ground by a youth as he snatched her handbag.
The woman was standing in an alleyway between Milton Street and High Hope Street in Crook, County Durham, on Sunday afternoon.
She was approached by two youths and one grabbed her handbag causing her to fall to the ground. Her grandson chased the pair but could not catch them.
Durham Police are trying to find the youths, who were wearing dark clothing.