A man was kicked and punched on the floor after he was set upon by a gang in Corby.
The man was walking home alone along Rockingham Road sometime between 1.20am and 1.35am on Saturday, May 3, when he was chased by a gang of four people.
They pursued him to the junction of Telfords Lane where he fell over and was beaten up.
The gang included two men and two women.
The main offender was white, in his mid thirties, eastern European, about 6ft and of medium build with short dark hair.
He wore dark jeans and a long sleeved top.
One of the women he was with was white, about 30, about 5ft 5in and of medium build.
She had her hair tied up and wore distinctive tight trousers with a cloud pattern printed on them.
Witnesses, or anyone with any information about the attack, can call Northamptonshire Police on 101 or information can be given anonymously to Crimestoppers on 0800 555111.