Pakistan's biggest case against the traffickers has fallen apart. Of the 52 Chinese nationals charged, a court in Punjab acquitted 31 while another 21 Chinese defendants left the country after they were granted bail.
A multinational police investigation is now underway in a case that has shocked Britain and renewed debates about ways to stop human trafficking.
AP investigation finds that African migrants are starved, raped and tortured in the Yemeni town of Ras Al Ara, which profits from human smuggling.
UK police are struggling to identify the victims, who are believed to have come from Asia, and autopsies are under way.
British police said they had arrested two more people over the deaths of 39 people found in a truck, believed to be Chinese nationals, on suspicion of human trafficking and manslaughter.
An Italian court ruled that an Eritrean accused of being a human trafficking kingpin known as "the general" was telling the truth when he claimed it was a case of mistaken identity.
The US Department of State in its annual report faulted Saudi Arabia for rampant violations among foreign labourers and accused Cuba of trafficking through its programme of sending doctors overseas.
Although sex work is allowed in much of Mexico, states have different and sometimes unclear rules, meaning workers frequently operate in legal vacuums which can leave them vulnerable to exploitation and trafficking.
The government and a slew of NGOs are offering assistance to help returnees settle back in their native place.
A survey by the UN had found that human trafficking cases have reached a record-high in recent years, with armed conflict and displacement being major drivers of human trafficking.
A US trafficking victim serving a life sentence for killing a man who bought her for sex when she was a teenager was granted clemency after a celebrity-backed viral campaign for her freedom.
The escalating debate over people leaving their home countries for new ones has sparked increasing opposition and reservations among the UN's 193 member states.
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