Updated

Mexico's governmental human rights commission says immigration agents violated the rights of a Mexican woman who was stopped at an immigration checkpoint because they thought she was Guatemalan.

The woman was only 17 at the time. She was pulled off a bus, interrogated by agents and released. But she missed her bus and disappeared and has not been seen since.

The rights commission said the incident occurred in the southern border state of Chiapas in 2015.

Many Chiapas residents are of Mayan Indian ancestry, as are many Guatemalans.

The commission said a witness told the victim's brother the agents thought she was Guatemalan. The agents said they let her go later, but she wandered off.

The commission said Tuesday it must be investigated as a case of "forced disappearance."