Police are asking for the public's help in identifying offenders in two separate sexual assaults in Christchurch last night.
In the first incident, a 21-year-old woman got into a red car and was driven to Peacock Street at about 10pm where she was sexually assaulted.
Detective Senior Sergeant Jeremy Gunn said the vehicle was described as a shiny, new-looking red sedan, similar to a Holden Commodore, with a spoiler on the boot and a dark interior.
The man is described as Caucasian, aged about 30, with tattoos on his neck and on his thigh.
Detective Sergeant Gunn said in the second incident an 18-year-old woman got into a white van just after 10pm believing it to be occupied only by the driver.
She subsequently realised that there were two other males in the rear of the van.
The victim has not been spoken to at length, and has not yet given any further details about the vehicle or the three occupants.
"What is known is that the victim was driven around the central city and sexually assaulted by the three males in the van.
"The victim was able to get out of the van at about 10.30 - 10.45pm on the corner of Armagh Street and Fitzgerald Avenue."
Mr Gunn is urging anyone who can help identify the people or the vehicles involved in the two incidents to contact the Christchurch police.