Wiltshire Police are appealing for witnesses following an assault on an elderly man in Salisbury.
In a statement, a police spokesperson said, "Officers were called to Winchester Street just after 7 pm on Saturday (29/04) to reports of an assault.
"A 73-year-old man was found in the middle of the road having been pushed to the ground by an unknown male from behind."
DC Sue Ellway said: “We believe this to have been an unprovoked attack. The victim was pushed with such force that he has fallen to the ground, causing cuts to his face, head and hands and loss of consciousness.
“We would like to thank several people who stopped to help the victim, including a female wheelchair user. We’re now appealing for anyone who saw what happened to get in touch with us.
“We would also like your help to identify the man in the image. We believe he may be able to help with our enquiries.
"If you saw what happened, please contact us on 101 quoting reference number 54230045065.
"Alternatively, you can contact Crimestoppers anonymously on 0800 555 111."