The presidential vote will take place May 27, but Londono, also known as Timoleon Jimenez, was running dead last in many polls amid a crowded field. As he struggled with health issues on the campaign trail, he was often heckled, threatened and attacked.

In the statement, the FARC accused the government of violating the spirit of the accords by not creating a safe political environment for dissenting voices, and for not releasing former guerrillas that the group considers political prisoners.

"We are committed, with all our determination, to break all ties between violence and politics," the group said. "Even so, since the signing of the final (peace) agreement, more than 50 ex-guerrillas or their families, and more than 250 social leaders, have been killed."

Miami Herald