BEIJING, China (AP) -- A Chinese dairy that sold baby milk powder linked to kidney stones in infants and one death knew weeks before it ordered a recall that the product contained a banned chemical, the Health Ministry said Saturday, as the number of sick babies rose to 140.
A Health Ministry statement gave no indication as to why Sanlu Group, China's biggest milk powder producer, failed to warn consumers immediately.
Employees who answered the phone Saturday at the ministry's news office and at China's product safety agency said they had no more information.
In August, Sanlu's testing "revealed melamine in the baby milk powder and showed that it was contaminated," a ministry statement said. It was not known when Sanlu alerted authorities about its findings.
The dairy only announced a recall Thursday of 700 tons of formula made before August 6.