BEIJING - Vice-Premier Zhang Dejiang will pay a four-day visit to the Democratic People's Republic of Korea (DPRK) in mid July, Chinese Foreign Ministry announced on Tuesday.

Zhang will lead a delegation to the DPRK from July 10 to 13 and attend the events marking the 50th anniversary of the signing of the DPRK-China Treaty of Friendship, Cooperation and Mutual Assistance, ministry spokesman Hong Lei said at a briefing.

At the invitation of the Chinese government, Yang Hyong Sop, vice president of the Presidium of the DPRK's Supreme People's Assembly, will visit China from July 9 to 12, Hong said, adding that Yang's schedule is still to be determined.