One of the biggest jailbreaks in Mexican history happened earlier this week, but it turns out the inmates didn't need to break anything, CNN reports. Authorities say that instead of going through a tunnel and a fence as earlier reported, most of the 131 escapees simply walked out the front door of the Piedras Negras prison, just across the border from Eagle Pass, Texas. The prison director and 15 other employees have been detained pending possible criminal charges, reports the AP.
The number of escapees was revised after three female inmates were found hiding in the prison, and revised again after two other prisoners were found to have escaped. Mexican troops and federal police are searching the state of Coahuila for the inmates but have only recaptured one man, a car thief. Two other inmates were arrested after a shootout with state police on Tuesday. Officials believe the Zetas cartel organized the escape, possibly in an effort to boost its ranks.