Colombia's FARC declare poll ceasefire, take a swipe at Zuluaga

Revolutionary Armed Forces of Colombia (FARC) lead negotiator Ivan Marquez (R) speaks to the media beside fellow negotiators Pablo Catatumbo (C) and Marcos Carratala during a conference between Colombia's government and FARC in Havana June 7, 2014. REUTERS/Enrique De La Osa

BOGOTA (Reuters) - Colombia's leftist FARC rebels declared a ceasefire on Saturday for a three-week period covering a tight presidential election race on June 15, campaigning for which has centred on how to end five decades of war with the guerrilla group.

The June 9-30 ceasefire was announced in a scathing open letter to opposition candidate Oscar Ivan Zuluaga, posted on the group's website, in which it accuses him of making inflammatory statements and trying to foment more war.