SEOUL, South Korea — North Korea issued a direct personal attack on the South’s new president for the first time since her inauguration two weeks ago, saying on Wednesday that her “venomous swish of skirt” was to blame for rising tensions on the Korean Peninsula.

The insult directed at President Park Geun-hye, the first woman to hold the office, added a curious sartorial element to the verbal barrage North Korea has been mounting since the United States and the South began a joint military exercise on March 1, followed by a new round of sanctions imposed by the United Nations Security Council.

“This frenzy kicked up by the South Korean warmongers is in no way irrelevant, with the venomous swish of skirt made by the one who again occupies” the presidential Blue House, the North’s Ministry of the People’s Armed Forces said in a statement, referring to Ms. Park. She returned to the residence as president on Feb. 25, about 33 years after her father, the former President Park Chung-hee, was assassinated.

The statement, which was carried by the North’s official Korean Central News Agency, reiterated that the North would not give up its nuclear weapons, calling them a guarantee of security against the United States.