Guatemala's presidential runoff vote Sunday will pit two centrist candidates against each other - former Guatemala City mayor Oscar Berger and career politician Alvaro Colom.
Mr. Berger and Mr. Colom both hope to pick up votes that went to former dictator Efrain Rios Mott in November's first round vote.
General Rios Mott, who is the ruling party's candidate, is blamed for brutal atrocities during his military strong-man rule in the early 1980s. Reports say the winner of Sunday's vote may put General Rios Mott on trial.
This is Guatemala's second presidential election since peace accords ended a 36-year civil war in 1996.