DEA had intelligence on earlier escape plots by El Chapo

Government documents show the Drug Enforcement Administration (DEA) had intelligence about at least two plots to help Mexican drug kingpin Joaquín "El Chapo" Guzmán escape from a maximum security prison.

Internal DEA documents obtained by The Associated Press reveal that drug agents first got information on escape plans in March 2014. That was about a month after Guzmán was captured in Mazatlán, Mexico.

The documents show that in March 2014 agents in Los Angeles reported a possible escape operation funded by another drug organization that operates under the auspices of Guzmán's Sinaloa Cartel and involved threatening or bribing prison officials.

That July, the same investigation revealed Guzmán's son had sent a team of lawyers and military counter-intelligence personnel to design a break-out plan.

Guzmán escaped through a tunnel below the prison late Saturday.