All West Liquor and Village Wines and Spirits stores throughout West Auckland have been temporarily closed following armed robberies within two days.
Meanwhile, police are aware of reports and said they are following strong lines of inquiry to arrest those responsible.
The Trusts, the organisation which operates the stores, said in a statement the closures were made for the safety of customers and staff.
"While none of our staff were hurt physically, both incidents affected them considerably. Our assessment is that the risk is higher than normal," chief executive Simon Wickham said.
"We believe the most responsible position is to close temporarily out of concern for the safety of our people and our customers.