Police investigating the killing of a Canterbury farmworker are searching irrigation and effluent ponds on a Rakaia farm near the 29-year-old's home.
A homicide investigation was launched after the body of farmworker Tony Waldron was discovered at the Gardiners Rd house in rural Rakaia on Wednesday.
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No details of how he died have been released, however police said initial reports that Waldron had received gunshot wounds were incorrect.
Detective Senior Sergeant Richard Quested said the Police Dive Squad were searching bodies of water on a property on Gardiners Road, which included searching an irrigation pond and an effluent pond.
The farm is on the same road as Tony Waldron's home, where he was found dead.
"A specialist search team continues to search the farmland as a part of the ongoing investigation," he said.
"Tony was a much-loved son, husband and father of two young girls, who have been devastated by his death," said Quested.
He appealed for anyone with information about the killing to come forward.
"There are people in the community who have information that can help us get justice for his family and we urge you to come forward and contact police."
"We will not rest until we find the person or persons responsible for this horrific crime."
Police earlier said they believed it was not a random killing.
"We would like to reassure the community that we believe this was not a random incident, and there is not thought to be any risk to the public. "
Anyone who has information that might help police should call 105 or go to the Ashburton Police Station.