Army troops liberated 52 Central American migrants who were being held captive at a residence in the northern border state of Tamaulipas, Mexico's defense department said Friday.
The group comprises 34 Hondurans, 12 Guatemalans, five Salvadorans and a Nicaraguan, the department said in a statement.
They were rescued in the wee hours of Thursday by soldiers from the 8th Military Zone acting on an anonymous tip that people were being held at a house on Naranjos Avenue in Reynosa, Tamaulipas, a city just across the border from McAllen, Texas.
Mexican gangs target undocumented migrants bound for the United States, grabbing travelers and contacting their families to demand ransoms.
The Central Americans freed Thursday were turned over to immigration authorities and will likely be repatriated to their respective countries of origin, the defense department said.
The rescue was carried out by soldiers assigned to Operation Northeast, an effort to curb the violence associated with a turf war between the Gulf and the Los Zetas drug cartels.
Los Zetas is blamed for the massacre last August of 72 mainly Central American migrants who were found dead on a ranch in San Fernando, Tamaulipas.
Nearly 200 bodies have been discovered this month at another location in San Fernando. While only two of the victims have been identified, the majority of the dead were men abducted by Los Zetas from buses headed to Reynosa.
This week's rescue of kidnapped migrants was the third this month in Reynosa.
Forty-four Guatemalans and three Mexicans were freed on April 9, followed by the liberation of 68 people - including 56 Mexican nationals - on April 19.
Mexico's independent National Human Rights Commission estimates that as many as 20,000 migrants were kidnapped in 2010.