Mexico City, Jul 14 (EFE).- Mexico did not receive any warnings from the U.S. government that Sinaloa cartel boss Joaquin “El Chapo” (Shorty) Guzman was planning to escape from prison, Government Secretary Miguel Angel Osorio said.

U.S. television network CBS reported Monday that the U.S. Drug Enforcement Administration told the Mexican government about the drug lord’s plan to escape from prison.

DEA “agents had developed bits of information about the various plans, and passed that information along to Mexican authorities,” CBS said, citing a U.S. law enforcement source.

Guzman escaped from the Altiplano I federal prison in central Mexico on Saturday night through a 1.5-kilometer (nearly one-mile) tunnel that led to a house.

“We’ll go through the process of looking to see where this information came from and document the fact that we were never informed of this,” Osorio said.

“The source said that Guzman’s son, his family and confederates were all talking about how to break him out of prison,” CBS reported.

The drug lord had been held at the prison in Mexico state, which surrounds the Federal District and forms part of the Mexico City metropolitan area, since his arrest on Feb. 22, 2014.

“However, none of the information was specific to Saturday’s successful break-out plan,” CBS said.

Several officials have been fired and dozens of guards are being questioned about Guzman’s escape, Mexican officials said. EFE