Police said they believe those involved are known to each other.
“We would like to reassure people that this was an isolated incident, with no ongoing risk believed to be posed to the wider public,” they said in a statement.
“The Point England community will notice a greater police presence while investigations continue.”
Earlier, Detective Senior Sergeant Steve Salton said inquiries were ongoing to determine the circumstances and locate those responsible.
“Police would like to hear from anyone who was in the immediate area at the time. You can call us via 105. Please reference job number P05557214.
“Information can also be provided anonymously via Crime Stoppers on 0800 555 111.”
Meanwhile, two people in balaclavas were seen at Auckland Hospital tonight. Police confirmed they received “a report of two people acting suspiciously” and were in attendance.