A 37-year-old man was attacked by a gang in a Corby street.
The incident happened in Stour Road when the victim was assaulted by three men who punched him on the face and head.
A police spokesman said: “They are white and aged 18 to 20. One of them was wearing a blue hooded top and another was wearing a grey hooded top and blue jeans.
The attack happened on Monday, April 21, at 10pm.
Witnesses or anyone with information are asked to call the police on 101 or Crimestoppers on 0800 555 111.