A 15-year-old disabled boy has been attacked by a cyclist who knocked him to the ground and stamped on his head five times.
The teenager was walking along Chester Road in Bedford, close to the junction with Old Ford End Road, at about 6pm last Thursday.
The cyclist was on the path heading towards him. He is described as a mixed-race man, aged about 20, and of a medium build.
He was with another man. Both left towards Old Ford End Road and Westbourne Road.
PC Sue Reynolds condemned the "appalling behaviour" of the teenager's attacker.
She added: "The victim is disabled and finds it difficult to walk unaided. He has suffered facial injuries which required hospital treatment, and the shock of the incident has left him feeling very vulnerable."