A man has been arrested over an armed police callout in Lower Hutt last week.

The armed offenders squad was called to Harrison Crescent on Thursday after reports of a person with a firearm.

Police today said they had arrested a 31-year-old man. He has been charged with possession of ammunition and will appear in Hutt Valley District Court on January 28.

Police were yet to locate the firearms allegedly used in the incident but inquiries were continuing.