Police were satisfied that this incident has been resolved and there is no ongoing danger to the public.
The spokesperson said charges were now being considered.
An ASB spokeswoman told the Herald the bank was aware of the incident at its LynnMall branch and said a team of support staff was helping employees.
“Our main concern is the personal safety and wellbeing of our people and customers,” the spokeswoman said.
“We are pleased with the way our team responded to this situation and can confirm no one was hurt. We are working with police as they carry out their inquiries.”
The incident happened at the same mall where Isis supporter Ahamed Aathill Mohamed Samsudeen stabbed five shoppers in a frenzied knife attack before being shot dead by two undercover police officers at the Countdown on September 3, 2021.