Two Wal-Mart employees have been arrested in the Chinese city of Jingdezhen, in connection with the death of a customer, local police say.
Reports say Yu Xiaochun was intercepted and badly beaten by five Wal-Mart security guards who suspected her of shoplifting.
She died in hospital three days after the 30 August beating.
Wal-Mart has confirmed the incident and said it was fully co-operating with the relevant authorities.
An eyewitness said she saw four or five young men beating the woman a few hundred yards away from the Wal-Mart store, and she had even gone over to tell them off. She said the scene was horrific.
The dead woman's husband told the media that he had found a shopping receipt in his wife's pocket after he got to the scene.
The victim was 37 years old and had a young son.
The police say they are doing all they can to prevent any public anger from fomenting into a so-called 'mass incident'.