Wilson said the investigation continued and asked anyone with information who had not yet been spoken with to get in touch via speaking to staff at the Kawerau police station, calling 105 and quote file number 240621/4014, or making an anonymous tip via Crime Stoppers.
In a statement, a Gull New Zealand spokesman said the “violent incident” involved members of the public and happened outside Gull’s owner-operated Kawerau site, but then moved to part of the forecourt.
“At no stage were any Gull customers or staff at risk.”
He said the health and safety of customers, staff and owner-operators was Gull’s top priority.
“The matter is now with the police and relevant agencies.”