The Auckland Harbourmaster is examining a close call between American Magic's AC75 America's Cup boat Defiant and a ferry.
Footage emerged of Defiant sailing very close behind a ferry traveling to Waiheke Island from Auckland on the Waitematā Harbour before being forced to make a sharp right turn.
When contacted by the Herald, an Auckland Transport spokesperson said Harbourmaster Andrew Hayton was "looking into it" and forwarded the following relevant rules.
The collision prevention rules, which were clarified as applying to all vessels, states that "any alteration of course or speed or both to avoid collision must, if the circumstances of the case allow, be large enough to be readily apparent to another vessel observing visually or by radar. A succession of small alterations of course or speed or both should be avoided".
It also states that "action taken to avoid collision with another vessel must be such as to result in passing at a safe distance'.