Police are appealing for witnesses to an assault which occurred on Victoria Avenue in Keighley July 22.
At around 8pm, a 14-year-old boy was approached by several males as he was walking home.
They asked for his age before punching him several times to the head and kicking him to the stomach.
The group then made off in the direction of Keighley.
All are described as Asian, in their mid teens. One had distinctive Mohawk style hair and another was wearing pink bottoms and a blue hooded top.
Any witnesses or anyone with information is asked to contact the non emergency number 101 or Crimestoppers anonymously on 0800 555 111.