North Korea is deploying troops, artillery and tanks near Pyongyang in apparent preparation for a massive military parade marking key national events later this year, South Korea said Tuesday. The military buildup near the capital began in mid-July amid high tensions on the peninsula, South Korea's Defense Ministry said in a report submitted to a parliamentary committee. "Preparation for a massive national event is under way" in North Korea and the move is presumably related to a key Workers' Party meeting in September and the 65th anniversary of the party's founding in October, it said. North Korea would likely use the military assets to stage a parade in Pyongyang, a ministry official said.