The government of Venezuelan President Hugo Chávez asked Colombia's main leftist guerrilla group to ''share its experience in guerrilla warfare,'' citing a possible U.S. invasion, according to documents obtained by The Miami Herald.

A senior Colombian official said the documents were retrieved from a computer belonging to Raúl Reyes, the FARC leader killed March 1 in a Colombian military strike on a rebel hide-out in neighboring Ecuador.

In one of the e-mails reviewed by The Herald, someone who signs as ''Iván'' tells the Revolutionary Armed Forces of Colombia's main leadership, known as the Secretariat, that the request for military cooperation came from Venezuela's interior minister, Ramón Rodríguez Chacín. The senior Colombian official — who requested anonymity as a condition to discuss the documents — identified ''Iván'' as Iván Márquez, a member of the Secretariat.

The authenticity of the documents could not be independently confirmed. The Colombian government has asked Interpol to verify the authenticity of the files, and results are expected soon. A request for an interview with Rodríguez Chacín was declined on Wednesday.

Read the full story at MiamiHerald.com.