Baldwin said initial indications are that the incident is "not random".
"Police are continuing to make inquiries, which include a scene examination and speaking with a number of different people."
A car with its rear windscreen shot out and bullet holes. Photo / Hayden Woodward
Police are asking anyone in the Mt Roskill area who may have seen any suspicious activity overnight to contact the Auckland City Crime Squad immediately.
• Can you help? Contact Police on 105, Auckland City Police (09) 302 6557 or CrimeStoppers anonymous on 0800 555 111