Two men have been charged with discharging an air rifle a public place after the second armed police callout in Christchurch in three days.
The incident near a high school on Wednesday follows a shooting in Burnside on Sunday night, in which a paraplegic gunman was killed by police after he wounded an officer and a resident.
In the latest incident, police received reports about 11.30am of shots being fired from a house in Hills Road.
A police cordon was put in place and Mairehau High School went into lockdown, with students and teachers hiding behind locked doors and staying away from windows for about an hour.
Principal Harry Romana said police contacted him about 1pm to say the situation was under control.
Police say no one was hurt in the incident. Two men, both aged 19, found at a property near the school will appear in court in due course.