Police are appealing for the public’s help to identify individuals who were near an area where an assault took place.
A police spokesperson said the attack took place shortly after midnight on January 22 in Christchurch central city.
One person was arrested in relation to the incident and was due to reappear in Christchurch District Court on April 19.
Authorities believe the individuals pictured in a released photo may be able to help with the ongoing investigation.
If you recognize any of the individuals or have any information that may be helpful to authorities, you are urged to contact Police via 105, quoting file number 230122/4570.
Information can also be provided anonymously through Crime Stoppers by calling 0800 555 111.