Southern Bloc of the Revolutionary Armed Forces of Colombia was the first bloc to exist and is where the roots of the guerrilla movement lie . The bloc has been held responsible for several notorious attacks , including the infamous " donkey-bomb " , numerous attacks against military bases , as well as Íngrid Betancourt ´s kidnapping . It was also blamed by government investigators and prosecutors for the bombing of the El Nogal club . FARC itself denied that any of its members were responsible for the attack
bombing of the El Nogal club
2003 El Nogal Club bombing
Southern Bloc of the FARC-EP