AlQa'dah 11, 1432, Oct 9, 2011, SPA -- North Korea on Sunday warned it could take military action against South Korea over an anti-communist propaganda leaflet that a political group plans to send across the border, as dpa reported. "South Korea's anti-North Korea group is openly planning to send the leaflets across the border. This is an outrageous act of provocation that can lead to a military clash and an all-out war," Pyongyang's state-run Korean Central News Agency said. The statement was a reference to a plan hatched by a South Korean conservative group to send the leaflets across the border on Monday, when North Korea celebrates the 66th anniversary of its ruling Worker's Party. It added: "South Korea must see the severity of the situation. In response, we are ready to launch direct fire against the South."