Authorities have launched a massive manhunt for more than 130 inmates who made a daring daylight escape from a Mexican prison using a tunnel equipped with ropes and electric cables. More than half of those who escaped from the prison in Piedras Negras, just across the border from Eagle Rock Texas, were serving time for federal crimes, including drug trafficking. Though drug gangs are often tied to prison escapes in Mexico, authorities have not yet linked the escape to a specific gang.

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