Roughly 132 inmates escaped from a prison in northern Mexico via tunnel on Monday, authorities in Coahuila state reported.
The prison break, which happened at a Piedras Negras prison just across the border from Eagle Pass, Texas, resulted in a massive search by federal police and Mexican troops, the Huffington Post reports. An elite military special forces unit was also sent to search the prison.
The inmates escaped from a minimum-security area of the facility by using a 7-foot-long tunnel, according to a statement from the state attorney general. The tunnel is reported to have started in the prison's wood shop.
U.S. Customs and Border Protection has placed the area on alert, CNN News reports, and Mexican authorities offered a reward of $16,000 for information leading to the recapture of the inmates.