North Korean leader Kim Jong-un observed a flight combat drill in his reclusive state, its state mouthpiece said Saturday, in what seems to be an expression of frustration over a continuing scattering of anti-North leaflets by activists in the South and Seoul's inaction in stopping the practice.

Kim, the supreme commander of the 1.1-million-strong military, watched the drill by fighter and bomber groups under the Guards 1st Air, Anti-Air Division of the Air and Anti-Air Force of the Korean People's Army, according to a news report by the Korean Central News Agency, without saying when it took place.

The state media gave weight to the news by saying that Kim called Col. General Choe Yong-ho, the commander of the KPA Air and Anti-Air Force, and Maj. General Choe Hak-song, chief of staff to the Workers' Party of Korea Central Committee, prior to the drill and handed them instructions for a combat flight drill.

The media also lashed out at the South Korean government, which it claimed is doing nothing about the anti-Korea leaflets that activists regularly send to the North, saying the KPA and all other men are "filled with the surging hatred" at the "vile human scum" who slander in challenge to Kim's New Year's address.

In his New Year's address on Jan. 1, Kim made a surprise remark that "There's no reason not to hold the highest-level talks," alluding to a possible inter-Korean summit with South Korean President Park Geun-hye. (Yonhap)