Whangarei police have increased patrols around dairies and liquor outlets after three aggravated robberies of small businesses in just over two weeks, including one where a dairy owner chased an alleged gun-wielding robber.
Maunu Superette in Whangarei was targeted just after 5pm on Monday but the alleged robber fled empty handed after threatening the dairy owner with what he believed to be a pellet gun.
Monday's aggravated robbery comes two days after three men allegedly threatened staff at Otaika Four Square and made off with cash and tobacco on Saturday night.
Maunu Four Square, located 1.2km from Maunu Superette, was robbed of cigarettes on March 5.
In August last year, a female shoplifter allegedly punched the owner of Maunu Superette in the face twice and in 2008, the businessman was confronted by a man brandishing a knife.
Area Commander Whangarei and Kaipara, Inspector Justin Rogers, said police patrols around dairies and liquor shops in Maunu and Otaika areas have increased as a result of the latest aggravated robberies.