Story highlights

NEW: Mexican authorities offer a reward and release a new photo of Joaquin "El Chapo" Guzman

NEW: The interior minister says he's fired the head of the prison where Guzman escaped

Guzman is the boss of one of the world's deadliest drug trafficking operations

CNN  — 

Mexico’s most notorious drug lord now has one more nefarious title: serial prison escapee.

Authorities are scrambling to find Joaquin “El Chapo” Guzman after his stunning escape from a maximum-security prison west of Mexico City.

The leader of the Sinaloa cartel stepped into a shower Saturday night, crawled through a hole and vanished through a mile-long tunnel apparently built just for him.

Mexico’s government is offering a reward of up to 60 million pesos ($3.8 million) for information leading to his capture, the country’s attorney general told reporters Monday, releasing what she said was a recent photograph of the cartel kingpin.

The image shows the Sinaloa cartel chief with a shaved head and face – and without the trademark mustache he sported when authorities nabbed him last year.

Mexican authorities released what they said was a recent photograph of escaped drug lord Joaquin "El Chapo" Guzman as they announced a reward for information leading to his capture.