Chinese milk accused of causing 'premature puberty'
China's government is investigating reports that a brand of powdered milk caused infant girls to grow breasts.
It is being alleged that hormone-tainted milk from Synutra International caused several cases of premature puberty in baby girls. The Chinese firm, whose shares fell by up to 35% on the news, strongly denies its products were tainted.
Food safety problems involving milk powder and other products have alarmed Chinese consumers in recent years.
Humphrey Hawksley reports.