Around 1,000 dead ducks have been pulled from a river in southwest China, local officials say.
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Residents found the dead ducks in Nanhe river in Pengshan county, Sichuan province, and alerted the environmental department.
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Local residents and livestock were not at risk as the river was not used for drinking water, officials added.
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The news comes as the toll of dead pigs pulled from Shanghai's Huangpu river passed 16,000.
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Speaking in an interview with China National Radio on Sunday, Liang Weidong, a deputy director in Pengshan's publicity department, said that the authorities were first made aware of the ducks on Tuesday.
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Officials discovered over 50 woven bags which contained the carcasses of around 1,000 ducks in the river.
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They were unable to determine the cause of death as some of the ducks were already decomposed, Mr Liang said, adding that the bodies had been disinfected and buried.
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An initial investigation suggested that the duck corpses had originated from upstream and were not dumped by local Pengshan farmers, he said.Â