Those students had been discharged from the hospital by Saturday.

An investigation team has been established, and the milk believed to be the cause of the tainting was set aside and sealed up so it could be put through testing to determine its contents.

The Mengniu Dairy Group said on its website on Saturday that it will help investigators determine the cause of the poisoning. It also said the milk products in the case have not harmed people other than the students who got sick.

The milk quality test report might be released on Wednesday or Thursday, according to the Beijing News.