Police said Raksina Techawatanabamrungkij, 37, was killed late Friday night after she released the three pit bull terriers from the cage into the compound of her family's rice mill.
Her mother-in-law, Charoensri Lorlertrat, 53, her daughter, Thaweephan Lorlertrat, 20 months, and her brother-in-law, Satit Lorlertrat, 33, were injured by the dogs.
Charoensri told police that Raksina left the house to release the terriers from their cage at about midnight but she did not come back inside, prompting her daughter to cry.
Charoensri came out to look for her and found her badly-mauled body along with a local pet dog of the family.
The pit bull terriers then turned to attack Charoensri and her granddaughter. She cried for help and when her son came out to help, he was also attacked.
Eventually, Charoensri's husband, Seksuek Lorlertrat, came out to help and shot two terriers dead while the other one escaped.
