The story

Chinese officials in the northwestern Xinjiang Uygur Autonomous Region reported the death of a fourth baby Thursday in the country's expanding contaminated infant formula case. The tainted milk powder has already sickened more than 6,200 babies.

Earlier in the day, authorities announced the arrest of 12 more suspects in the investigation, provincial police said.

The arrests bring to 18 the number of people detained, according to the Hebei Public Security Bureau. Read full article »

CNN's Yuli Yang contributed to this story.

All About ChinaFood SafetyProduct Recalls

Don't Miss