PYONGYANG - A leading Democratic People's Republic of Korea (DPRK) newspaper said Monday that Kim Jong-un had taken over leading the country the day after top leader Kim Jong-il died.

In an article entitled "Today and Tomorrow of Songun Korea," Rodong Sinmun, the official newspaper of the Central Committee of the Workers' Party of Korea (WPK), said all the DPRK's work was being firmly carried out under the leadership of Kim Jong-un.

During the nine days of the national mourning, the country's politics had remained stable, which showed the utter support and trust of the army and people in the heir of their leader, the article said.

Under the wise leadership of Kim Jong-un, all servicepersons of the Korean People's Army have affirmed their faith of defending the WPK central committee with their lives, it said.

The whole WPK is running flexibly under the exclusive leadership of Kim Jong-un and all party organs are fully supporting him, it said. The DPRK's revolution and construction are advancing according to his intention, it added.

Kim Jong-il passed away on a train during an inspection tour on December 17. The DPRK media has repeatedly affirmed Kim Jong-un's top leadership in recent articles and commentaries since his father's death.