U.S. authorities arrested a Mexican man for allegedly using Craigslist to recruit drivers who transported undocumented immigrants into Texas, prosecutors said.

Border Patrol agents arrested Jose Gustavo Díaz Velásquez on March 14 in the Texas city of Rio Grande. A judge in McAllen on Wednesday ordered him to remain in custody without bail on charges of smuggling immigrants.

Researchers believe that Díaz Velázquez lived illegally in the United States, but at the moment there was not enough information available to determine where in Mexico he came from. 

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The investigation into the Craigslist smuggler began in August when federal agents identified at least 10 notices online allegedly connected to the smuggling ring.

The agents tracked the ads on Craigslist to an apartment in McAllen linked to the suspect's wife.

Also in Mexico, the army detained the police chief of a town in western part of the country who had pamphlets and banners about the cult-like Knights Templar drug cartel, as well as cocaine and hand grenades in his patrol car.

The Defense Department says in a statement released Thursday that Raymundo Monroy was detained Monday in the town of Huetamo in Michoacán state, where he is police chief. Soldiers also found cocaine, two automatic rifles, and two hand grenades.

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The DOJ says troops searched Monroy's car after he began acting nervously at a military checkpoint in Huetamo.

The Knights Templar cartel appeared in 2010. It claims to protect Michoacán and defend ethical principles, but in fact engages in drug trafficking, killings and extortion.

Based on reporting by The Associated Press. 

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