"Obviously the fact that a firearm is missing is a concern for us. We are asking all residents in the area to be on the lookout for a firearm or any suspicious package or clothing," he said.
The injured 45-year-old man was taken to Rotorua Hospital with facial injuries and was in a stable condition. He will be taken to Waikato Hospital for specialist treatment.
A scene examination by police and ESR forensic staff will continue tomorrow.
The incident happened near Sunset Primary School, which went into temporary lockdown.
Principal Niels Rasmussen said police told the school pupils should be kept inside their classrooms until the all-clear was given.
- NZPA