The Mexican government is now offering a $3.8 million reward for powerful drug lord Joaquin “El Chapo” Guzman, who escaped from a maximum security prison on Saturday.

Investigators have searched highway and border checkpoints and even closed an international airport in the search, but have found no sign of Guzman, who is expected to resume his role as kingpin of the notorious Sinaloa Cartel.

Jonathan Hunt reported on "Shepard Smith Reporting" that Mexican Interior Minister Miguel Ángel Osorio Chong has said that there is a very strong likelihood that prison officials were "complicit in the escape."

"More than 30 prison officials have been questioned, and investigators are continuing to study that elaborate tunnel that led right into Guzman's prison shower, a tunnel experts say would have taken at least a year to build," Hunt said.

Despite the obvious evidence of extensive planning, Chong maintains that Mexican authorities had no prior indications of any escape plans, Hunt said.

As for where Guzman currently is, experts are saying there are two main possibilities, Hunt reported.

"The most likely being in a remote corner of his home state of Sinaloa, an area known as the "Golden Triangle," where his power would make it almost certain that no one would dare speak a word to Mexican authorities," Hunt said.

"The experts say he may also have flown to Guatemala. That's a place where he's hidden from the authorities before. But frankly, Shep, no one knows for sure. This, after all, is a man with great power, a global network of criminal contacts and almost limitless funds."

Watch more above.