The man claimed to have served 20 years in a Salvadoran prison for the murder of a rival gang member, agents said.

Detroit Border Patrol agents arrested a Mara Salvatrucha gang member, according to the U.S. Customs and Border Protection.

One of the men admitted he was a member of the Mara Salvatrucha (MS-13) gang and had served 20 years in a Salvadorian prison for murder.