A YOUNG boy has been killed after becoming entangled in machinery at a shrimp farm in Vichit, south of Phuket City, this afternoon.

The 10-year-old sister of Chonsukan Sealao, 8, held his hand as he said his last words: ''Tell Mom I'm going to die.''

His mother Sommai Pangpaitoon, 29, had warned the two children and their nine-year-old brother not to play at the shrimp farm, about 500 metres from their home.

Khun Sommai had been selling fruit from a sidecar motorcyle at Saphan Hin, in Phuket City, but returned home to make lunch for her children before heading back to work again.

''I said: 'Clean the dishes after lunch. Don't go to play in the shrimp farm','' she said today at Vachira Phuket Hospital in Phuket City, where she could only grieve over the body of her youngest child.

Two young friends had enticed the three children to go out to play with them. Chonsukan slipped on a muddy bank at the shrimp farm and fell into the water, where a motorised rotating belt caught him by the shirt and kept turning.

The children were unable to pull him free and could not work out how to turn off the power, said Kusoldharm workers who were eventually called to the scene by frantic neighbors.

In a second fatality, volunteers found the body of Tun Jurigawong, 52, in a pond in Kathu not far from his home about 8pm last night.

His wife went looking for him in the evening and discovered his jeans and shoes and an energy drink bottle that he usually filled with whisky beside the pond.