POLICE are investigating the violent robbery of a man on the David Trumpy Bridge, in Ipswich's CBD, on Tuesday night.
A 36-year-old man was walking across the bridge at 10.45pm when he was allegedly racially abused by a group of four young males.
Ipswich Detective Senior Sergeant Gary Dixon said the man claimed the offenders called out to him to come and talk to them.
The man told police that he was struck from behind and knocked to the ground, with the offenders taking his wallet.
He said he was kicked while on the ground.
The victim was later taken to Ipswich Hospital with a suspected broken eye socket.
He was released from hospital early yesterday morning.
Although there was no surveillance camera footage of the assault, police said they had obtained footage of the offenders walking through another part of the CBD.
It was thought the offenders were juveniles, and therefore police would not release the footage to the public.
The only description offered of the offenders was that they were of Aboriginal or Torres Strait Islander appearance.
Snr Sgt Dixon said one witness had been identified, but police would like to hear from anyone else who saw the alleged assault and robbery.
It followed a string of violent robberies of pizza delivery drivers across the Ipswich area over the past month.
Local detectives have arrested and charged one man over those offences, but it was thought there were at least two other people involved.
Anyone with information that could assist police should contact Crime Stoppers anonymously on 1800 333 000.