BEIJING (AP) – A court convicted 52 members of a baby-trafficking gang Friday, sentencing the ringleaders to death or life in prison.

The case included a highly publicized incident in March in which 28 baby girls, none older than three months, were found hidden in nylon tote bags aboard a long-distance bus, according to the official Xinhua News Agency.

The convictions highlighted the scale of China’s thriving black market in babies and came less than two weeks after police announced the arrests of 95 people in northern China in an unrelated baby-trafficking ring.

In the ruling Friday, a court in the city of Nanning sentenced gang leaders Xie Deming and Cui Wenxian to death, Xinhua said. Four others were given suspended death sentences, a penalty that is often later commuted to life in prison.

Five gang members received life in prison, while 40 others were sentenced to at least 18 months, Xinhua said. One person was convicted but received no penalty, the report said without explanation.

The ring was based in the city of Yulin in the southern region of Guangxi, one of China’s poorest areas.