Chinese police say they have rescued 53 baby boys who were in line to be sold by a trafficking ring.
There is a thriving black market in babies in China
The operation also led to the arrest of 110 people, including the alleged ringleader of the gang, police say.
The suspects are accused of buying the boys and then selling them on at a profit of thousands of dollars.
Correspondents say the trade in children has been fuelled by China's family planning laws, which limit couples to one child.
The arrests took place in Fujian
province in south-eastern China, where it is thought the boys were to be sold for up to 18,000 yuan ($1,800).
The infants were allegedly bought in south-western Yunnan province, for between 2,000 and 4,000 yuan.
Chinese state news agency Xinhua said police from the two provinces acted together over six months to crack the elaborate ring set up to transport the infants to Fujian.
Family planning laws
There is a thriving black market in babies in China.
Because of rules limiting each family to only one child, couples sometimes sell younger siblings on.
Poor families sometimes sell baby girls, so they can try again for a boy. Boys are traditionally valued higher than girls.
Poverty-stricken Yunnan province is one of the worst areas for human trafficking.
Police say they have arrested more than 6,000
suspects there since 2000, alleged to be responsible for kidnapping 3,956 women and 839 children.
Women are often promised jobs elsewhere, but are sold into marriage or prostitution.
Two human traffickers were sentenced to death earlier this month for selling 74 women and 22 children.