HMM: North Korea punishes top military leaders, South Korea says.

Two key figures in the North Korean military have been punished for “impure behavior,” according to a South Korean lawmaker, a move analysts say is likely intended to help leader Kim Jong Un tighten his grip on power.

A closed-door briefing by South Korea’s National Intelligence Service (NIS) identified the two officials as Hwang Pyong So, the director of North Korea’s General Political Bureau (GPB), and his deputy Kim Won Hong, said South Korean Rep. Kim Byung-kee after the meeting.

The General Political Bureau, which is also referred to as the General Political Department (GPD), is being audited for the first time in 20 years, Rep. Kim added, citing the NIS.

It’s unclear how exactly how Hwang and his deputy were disciplined, but one analyst told CNN they could have been required to undergo re-education, which is likely to include a period of re-indoctrination of North Korean ideology.

At least they weren’t executed by antiaircraft gun — yet.