South Korea said its military remained on alert Sunday a day after North Korea pledged "an all-out confrontational posture" in response to Seoul's hard-line stance against its communist regime. The Korean People's Army called South Korea's president a "traitor" and accused him of preparing a military provocation, according to a statement carried Saturday by the North's state-run Korean Central News Agency. The North also warned of a "strong military retaliatory step," and South Korea immediately put its forces on alert. A Defense Ministry official said Sunday the South's military will remain on alert, though there was no unusual moves by the North's forces. The official spoke on condition of anonymity citing department policy.