CCTV images have been released of two teenagers wanted in connection with an assault on a bus in Dunstable.
A young boy was punched in the head by two teenage boys on his way home from school at around 4pm on Tuesday 28 April.
The incident left him with bruising to his face.
PC James Matthews, investigating, said: “This was an unprovoked attack that was very distressing for the young boy.
“We would urge anyone who recognises the teenagers pictured to contact us as we believe they may have important information which could assist our investigation.”
Anyone with any information should call PC Matthews on 101, text 07786 200 011 or call Crimestoppers, anonymously, on 0800 555111