Around 1,000 dead ducks have been found in China's Nanhe river in Pengshan count, Sichuan Province.

The news comes as the toll of unexplained dead pigs pulled from Shanghai waters hits 16,000, the BBC reports.

Liang Weidong, a director in the region’s publicity department, said the dead birds had been handled safely and posed no threat to residents and livestock, Xinua News writes.

Local authorities say the Nanhe river is not a source of drinking water.

Shanghai’s Huangpu River, which is where the dead pigs were fished from, is however.

dead pigs china

The carcasses of 16,000 pigs have been fished from Shanghai's Huangpu River

According to a statement posted on Shanghai's Agriculture Committee's website there is no evidence the pigs were dumped in the river, nor of any animal epidemics.

The city's water supplies bureau had insisted the water quality has not been affected, China Daily reported.

An investigation into where the carcasses came from continues.

Loading Slideshow...
  • A dead pig floats on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo)

  • Dead baby pigs float on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo)

  • Workers look for dead pigs floating on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko)

  • A resident looks at a dead pig floating on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko)

  • A dead pig floats on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko)

  • A dead pig floats among the rubbish on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko)

  • A dead pig floats on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko)

  • Authorities check the dead pigs, not seen, which have been pulled out from the river on a barge Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko)

  • In this photo taken Thursday March 7, 2013 and made available Sunday, March 10, 2013, dead pigs are strewn along the riverbanks of Songjiang district in Shanghai, China. Chinese officials say they have fished out 900 dead pigs from a Shanghai river that is a water source for city residents. Officials are investigating where the pigs came from. A statement posted Saturday on the city's Agriculture Committee's website says they haven't found any evidence that the pigs were dumped into the river or of any animal epidemic. (AP Photo) CHINA OUT