Auckland Police continue to urge witnesses of Thursday's shooting in Grey Lynn to come forward

An 18-year-old was killed at the Tuarangi Road address, while three men remain in hospital in a serious but stable condition.

While the scene examination continues, nearby roads haven been reopened and the scene will be blessed today.

Detective Inspector Glenn Baldwin, says a number of people were present when the shooting happened, and need them to speak at the earliest opportunity.

He says they know tensions have been at play between the groups involved for some time, and any information to help piece together what has happened, will be welcomed.