A 30-year-old man was attacked and robbed in woodland in Corby.
The incident happened on Wednesday (February 27) between 10.20am and 10.30am when the man was walking in Hazel Wood.
He was approached by three men wearing light-coloured hooded tracksuits.
They assaulted the victim and stole cash and a mobile phone before making off in the direction of Cottingham Road.
Witnesses are asked to call the police on 101, or Crimestoppers on 0800 555 111.