A baby boy died after drinking milk formula.

A baby in rural Jiangxi province died after drinking milk formula of the Nasdaq-listed Synutra International, Inc..

The commerce authorities in east China are investigating the case.

A twin in rural Jiangxi province suffered from diarrhea and uncontrollable shaking after drinking milk formula of Synutra. The baby boy died hours later in a pediatric hospital.

Authorities have sealed the same batch of Synutra products in the county of Duchang, where the case was reported, and sent samples for testing. The test results will be known on Friday.

The boy was buried on Tuesday while his twin sister, who was also sick, was discharged from the hospital on Wednesday.

Synutra said its products meet the national standards. The company offered its condolences to the baby's parents and had appealed to the Ministry of Public Security to launch a serious investigation and properly settle the issue.

China's dairy industry suffered a heavy blow in 2008. The baby formulas of many major dairy companies, including Synutra, were found to be tainted with melamine, an industrial compound used to create plastic and resin. The tainted formula led to the deaths of six infants and sickened 300,000 children across the country.