Manawatu Police are investigating an assault which occurred at the car park located at the end of Riverside Drive, off Te Matai Road.
The incident occurred on Thursday 20 April, 2017, at around 4pm.
During the incident - which happened on Thursday afternoon - a man was sitting in his vehicle when he was threatened by another man brandishing a screw driver.
The victim managed to stop an attack from progressing, receiving minor injuries while he defended himself, police said.The offender fled in a white vehicle driven by a woman.
Detective Andy Livingstone said police wanted to speak to several people who were in the area at the time, who may have witnessed the incident.
One was a man on a red road bike, wearing a yellow-coloured helmet, a yellow top and black cycle pants. He was cycling towards Napier Road.
They also would like to speak to a cyclist on a black mountain bike wearing a long-sleeve brown-coloured top and black cycle pants, and the driver of a dark blue Subaru RX or WRX who was with a black dog.
"We'd also welcome any nominations from members of the public as to who these potential witnesses may be," he says.
"We are following lines of enquiry and have had no other reports of this nature in the area."