"There are Central American migrants in the organised crime groups that kidnap migrants, " Mr Plascencia said.

BBC: More than 11,000 migrants abducted in Mexico

Mr Plascencia called on the Mexican authorities to do more to combat the kidnapping of migrants and guarantee their human rights.

BBC: More than 11,000 migrants abducted in Mexico

"The nature of the crime and the vulnerability of the immigrants does not allow us to know the total number of abductions, " the commission's president, Raul Plascencia, told a news conference in Mexico City.

BBC: More than 11,000 migrants abducted in Mexico