North Korean leader Kim Jong Un denounced officials who amass “corrupt wealth” and young people’s “drift” from party teachings in a speech on Monday.

The Korean Central News Agency (KCNA) reported Tuesday that Kim visited the ruling Workers’ Party of Korea (WPK) Central Cadres Training School in the capital to celebrate the institution’s 80th anniversary.

Kim said party members continue to exhibit “various immoral and undisciplined phenomena” while “treating the Party school process as a springboard for personal advancement,” adding these trends “must be thoroughly eliminated.”

One of Kim’s top concerns regarding the future of his ruling system is an