Altiplano prison

Mexico: Drug lord 'El Chapo' Guzman escapes through tunnel

With the elaborate escape hatch built allegedly without the detection of authorities, Guzman has done what Mexican authorities promised would not happen after his re-capture last year — slipped out of a maximum security prison for the second time.

Eighteen employees from various part of the Altiplano prison 90 kilometers (56 miles) west of Mexico City have been taken in for questioning, Security Commissioner Monte Alejandro Rubido said in a news conference Sunday.