By RNZ
Toxicology shows no presence of 1080 in dead rats that washed up along with other animals on North Beach near Westport this month.
About 600 rats, an octopus, a calf and other animals were found washed up on the West Coast beach on Saturday 9 November.
The Department of Conservation (DOC) sent 12 of the rats for testing over concerns they had been killed by a recent 1080 drop 140km away in Lewis Pass National Reserve.
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• 1080 drop wiped out 90 per cent of deer on Molesworth block