KUNMING - Police in Southwest China's Yunnan province have busted a child trafficking ring, rescuing 31 infants in the process, the public security bureau of the Ministry of Railways said Friday.

The ring abducted babies in Yunnan and sold them in Hebei and Shandong provinces in North China, according to the bureau.

Railway police in the provincial capital of Kunming have arrested 76 suspects so far, traveling to seven different cities between the three provinces since November 2011 to bust the ring.

The ring purchased the infants at a price of 8,000 to 10,000 yuan ($1,266 to $1,582) each in Yunnan and sold them in Hebei and Shandong for 20,000 to 50,000 yuan apiece, according to the bureau.