THUGS on board a bus threatened a teenager with a foot-long hammer, before stealing his Apple iPhone.
Police are hunting for the group of youths, who robbed the 17-year-old only minutes after he’d got on the No 49, at the Colebrook pub.
The victim, who was alone, was threatened by the gang, attacked and ordered to hand over his valuables.
One of the youths, aged 17 or 18, dressed in a checked shirt and woolly hat, lashed out with his fist, punching the passenger several times.
His friend, wearing a grey hooded jacket and carrying a satchel, threatened the teenager with the hammer, before snatching his mobile.
Several other teenagers were laughing and joking during the attack, which happened on October 22, at around 10pm.
The group are believed to have got on the bus at Longbridge Station, in Birmingham, and disembarked outside Iceland, in Shirley.
But the robbers, thought to be local, were caught on CCTV and police have released pictures, hoping someone will recognise them.
DC Mike Hayward said: “There are two main offenders here, but the others caught on camera are all involved to a certain degree.
“The victim was subject to a nasty assault which left him bruised and with a chipped tooth.
“Anyone who carries a hammer around with them and is prepared to use it against innocent members of the public needs apprehending quickly.”
Anyone with information can call DC Hayward on 0345 113 5000 (ext: 7921 6711) or ring Crimestoppers, anonymously, on 0800 555 111