Police searching for missing helicopter pilot Michael Mehrtens have found what they describe as an item of interest.
The Police dive squad has been searching Lake Sumner using a sonar device.
Canterbury Police Operations Manager, Inspector Craig McKay, says, at this stage they can't say whether it is the body of Mr Mehrtens,
They're currently using a remote-operated vehicle with a manipulator arm to try to retrieve the item.
The object is near where helicopter wreckage had previously been located, and is on the lake bed at a depth of 127 metres.
Photo: NZ Herald