The Democratic People's Republic of Korea (DPRK) will not change its economic policy after the execution of Jang Song Thaek last week, a senior official has said.

"The subversive crimes committed by Jang have caused huge harm to the nation and people," Yun Yong Sok, a senior official in the State Economic Development Committee, said in a written interview with Xinhua.

After Jang's execution, the DPRK will become more united and determined to build a prosperous socialist country, he said.

"We are studying world-renowned economic management methods and will introduce them in accordance with our national conditions," Yun said, adding that his country will continue to strengthen exchanges and cooperation with other countries in the fields of trade, investment, and science and technology.

Jang, vice chairman of the National Defense Commission and secretary of the Workers' Party of Korea administration department, was executed last Thursday immediately after a special military tribunal convicted him of treason, the official news agency KCNA reported.

The 67-year-old senior general, who was married to DPRK leader Kim Jong Un's biological aunt, admitted at the trial that he has premeditated a coup against Kim, the report said. Endi