Two launches collided in Whangarei Harbour last night, leaving them both significantly damaged.
The launches collided at the entrance to the harbour and the circumstances of the incident were being investigated by Maritime New Zealand, Northland's Regional Harbourmaster Jim Lyle said.
Authorities were now speaking with the owner of the more badly-damaged launch, which ended up in the Marsden Cove overnight with extensive damage to its bow.
The other vessel had been removed from the water in Whangarei today for repairs, My Lyle said.
Mr Lyle said the incident served as a reminder of the importance of keeping a proper lookout and using correct navigation lights on the water.