Beijing, China (CNN)  -- In some of the photos, the young children are wearing bibs and slight smiles can be seen on their chubby faces.



But these are not your normal baby pictures.



The Chinese government is trying to find the parents of these 60 homeless children, some of them so young that they had not yet developed the strength to hold their own heads up.



This week the Chinese Ministry of Public Security posted pictures of these rescued children on its Web site.



Many of them had similar stories. They were kidnapped, stolen or sold and somehow had been rescued by authorities.



Police tried to find their parents but could not find them through the national DNA database, state-run China Daily reported.



And for the first time, the Ministry of Public Security posted their pictures.



"Even if I can't find my boy's photo on the Web site today, it's a blessing for desperate parents like us who have nearly lost hope," Tang Weihua, a mother who lost her 5-year-old son in 1999, told China Daily this week.



About 30,000 to 60,000 children are reported missing every year, but it is hard to estimate how many are involved in child trafficking cases, the Ministry of Public Security told China Daily.



Police have rescued 2,000 children this year since China launch a nationwide anti-trafficking campaign, China Daily reported.



But after rescuing the children finding the parents can prove difficult. One issue is that in some cases the parents sold the children.



Earlier this week China's state media reported that police arrested dozens in an alleged child trafficking ring that sold at least 52 babies.



The traffickers bought 19 boys and 33 girls from impoverished rural families in Shanxi and Hebei provinces in the past two years, the state-run Xinhua news agency said.



The ring started crumbling after three men were arrested with a baby boy in their van, Xinhua said. The three suspects said they had bought the baby from a woman and her daughter in Hebei, according to Xinhua.



The women had sold 12 other babies to the men, and were arrested, Xinhua said.
How many children have been rescued? how many children rescued? What has China posted photos of? Who could the police not find? Who did police arrest? How many children were rescued so far this year?
60 2,000 young children the parents dozens in an alleged child trafficking ring 2,000
question: How many children have been rescued?, answer: 60 | question: how many children rescued?, answer: 2,000 | question: What has China posted photos of?, answer: young children | question: Who could the police not find?, answer: the parents | question: Who did police arrest?, answer: dozens in an alleged child trafficking ring | question: How many children were rescued so far this year?, answer: 2,000