A knife-wielding man has been arrested by police after a fog cannon was activated at a jewellery store in Newmarket.
Inspector Daniel Meade said there was an attempted aggravated robbery at the store, understood to be the Michael Hill in the Westfield Newmarket mall, at about 1.23pm.
The mall was evacuated as a precaution, police said.
Meade said a worker activated the alarm after a man entered the store armed with a knife before the fog cannon was activated.
![The Michael Hill store in Newmarket after an attempted robbery today. Photo / Dean Purcell](https://www.nzherald.co.nz/resizer/v2/674B4WZ55NGPHKURJ36G34XIG4.jpg?auth=4e8cd0d0f0b12fe734445ac0c4050aee383d50a5b0783a8cfe20e96801756c3a&width=16&height=11&quality=70&smart=true)