The official Korean Central News Agency said Kim went to North Korea's South Hamgyeong Province where he congratulated workers who took part in the building of a new power station, the South Korean news agency Yonhap reported.

On the same visit -- the date of which wasn't specified -- Kim was also shown urging farmers to use new technologies to help tackle the North's continuing food shortages, Yonhap reported.

KCNA said Kim was accompanied by his only brother-in-law Jang Song Thaek, a department director of the Communist Party, and party secretary Kim Ki Nam.

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