North Korean leader Kim Jong-un is known to have executed or fired some military officers and government officials for committing immoral acts during the mourning period of his father Kim Jong-il.

Sources familiar with North Korean affairs say a vice chief of North Korea’s General Staff was shot to death for his involvement in a sex scandal during the morning period. He was one of six or seven vice chairmen under North Korea’s Army Chief of the General Staff, Ri Yong-ho.

A vice minister of People’s Armed Forces was apparently shot to death as well for drinking alcohol with a female official.

The source said that the dean of Kim Hyung-jik College of Education was dismissed for arriving late at the funeral for Kim Jong-il. A secretary at the Ministry of Land and Marine Transport was also fired for failing to appropriately make arrangement for condolence flowers.

The source also said that in January Kim Jong-un ordered the dismissal of anyone who failed to observe the mourning period.