Lasting peace in Colombia is "still in the works" but "within reach," a UN official says at a ceremony in Bogota's Bolivar Square to mark the eighth anniversary of the peace accord between the government and the FARC, attended by Colombian President Gustavo Petro and former FARC commander-in-chief Rodrigo "Timochenko" Londono. Although the signing of the agreement has reduced violence, at least 1.5 million people have been internally displaced due to the activities of dissident groups, the Norwegian Refugee Council (NRC) reports. IMAGES AND SOUNDBITES