Colombia's Marxist FARC rebels on Sunday accused the government of "repeatedly breaking" terms of their peace deal, and threatened to delay their demobilization.

"After the government's repeated non-compliance with the Peace Agreement (signed in November), the FARC is going to seek international monitoring," rebel leader Rodrigo Londono, AKA Timochenko, warned on Twitter.

He earlier said he was "considering" postponing demobilization.