Several teenagers have been arrested in Tāmaki Makaurau/Auckland, following a spate of robberies in April.
It comes as police investigate robberies at businesses across the city, including several jewellery stores, said Detective Inspector Glenn Baldwin on Friday.
He said Auckland officers carried out seven search warrants this week.
"Today, our teams executed a search warrant at a residential address in Glendene where a 17-year-old was arrested in relation to an aggravated robbery at a Hillsborough bar on Thursday 25 April," Det Insp Baldwin said.
The teen appeared in the Waitākere Youth Court on Friday, charged with aggravated robbery and unlawfully getting into a stolen vehicle.
Another 17-year-old, who was previously arrested over the same Hillsborough robbery, has since been charged too.
Two other youths allegedly involved in the Hillsborough robbery were also arrested, Det Insp Baldwin said.
"A 12-year-old was also located at the address today and arrested in relation to an unrelated matter."
Police have also charged three youths, all aged 17 or 18, over a separate alleged robbery at a Newmarket jeweller's on April 12, Det Insp Baldwin said.
"A fourth person, aged 14, has since been referred to Youth Aid."
And following an alleged third aggravated robbery at a Manurewa jeweller's, Police have referred a 14-year-old to Youth Aid.
Detectives are "following positive lines of enquiry" to find others believed to be involved in the Manurewa robbery, said Det Insp Baldwin.
"I am proud of the progress the team has made thus far and they continue to work hard to hold offenders to account for this awful and alarming series of offending," he added.
Further arrests haven't been ruled out, as police look into other robberies at St Lukes, Ōnehunga, and another in Newmarket.
Det Insp Baldwin said police will maintain a presence "in and around shopping malls across the region".
"To date, our teams have conducted hundreds of patrols and are visible in our communities," he said.
