Police have cordoned off a house in Papakura after a gun was apparently fired at the house overnight.
A police spokeswoman said around 3am police were called to the property on Great South Rd following reports shots had been fired towards it.
"Police have been armed as a precaution and have found damage to a window that appeared to have been as a result of a firearm," she said.
Nobody had been hurt.
Police were investigating and had "some good lines of inquiry".
Not long after, another firearms incident was reported on Point England Rd in Glen Innes.
Police said around 3.30am they had received a report of a disorder incident where a firearm was discharged.
"The alleged offender left the scene in a vehicle [and] was later located and arrested by police," a spokesperson said. Inquiries were continuing.