Police are appealing for information following a robbery in Shipley.
At about 11.30pm on Saturday 26 May, a man and woman from Bradford were walking their dog on Bradford Road, when they were approached by a group of males who assaulted them and made demands for money.
Two mobile phones were taken, as well as a wallet and a small quantity of cash.
The woman suffered injuries which required hospital treatment.
The suspects are believed to have ran off towards Wycliffe Gardens.
A 15-year-old male from Bradford has been arrested in connection with the incident and has since been released under investigation.