An elderly villager was bitten on the legs and buttocks by a wild boar at his New Territories farm in northern Hong Kong on Friday.
The 68-year-old man was in a serious condition in a public hospital in Sha Tin as of 5.30pm.
He was in a semi-conscious state when he was found by another villager on his farm at Lei Uk San Tsuen off Ping Che Road in Ta Kwu Ling at around 2.05pm, according to police.
A force spokesman said the villager had been bitten by a wild boar that had left the area before emergency personnel arrived.
Officers found no trace of the animal in the area, he added.
A source said the wild pig was about one metre (3.3 feet) long and thought to weigh about 90kg (198lbs).