A forensics worker climbs out of the tunnel that was dug to the base of a shower in a cell that housed Joaquin "El Chapo" Guzman at Altiplano maximum security prison.

A journalist climbs a ladder out of the tunnel that drug lord Joaquin "El Chapo" Guzman used to escape from the Altiplano maximum security prison in Almoloya, west of Mexico City. A widespread manhunt that includes highway checkpoints, stepped up border security and closure of an international airport has failed to turn up any trace of Guzman after he escaped from his cell and through the tunnel Saturday night.

A motorcycle modified to ride on a rail sits in the tunnel under the half-built house where, according to authorities, drug lord Joaquin "El Chapo" Guzman emerged and made his escape from the Altiplano maximum security prison.

A TV reporter stands in the exit of the tunnel that Joaquin "El Chapo" Guzman used to escape from prison.

Police tape surrounds the building that contains the the exit of the tunnel used in the escape.

This is the most recent photo of drug lord Joaquin "El Chapo" Guzman before he escaped July 12 from the Altiplano maximum security prison. The Mexican government is offering a 60 million peso (about $4 million dollars) reward for information leading to his capture. Photo from Mexico's Attorney General's Office via AP