Foreign Minister Fumio Kishida and U.S. Secretary of State John Kerry on Wednesday shared concern over North Korea's intensifying provocations and agreed to enhance cooperation, including financial sanctions, to prevent the reclusive country from going nuclear.

During the meeting, Kishida told Kerry that Japan is extremely concerned over Pyongyang's intention to restart its nuclear facilities in Yongbyong and recent development to prepare missile launches, a Japanese official said.

He also said it is necessary to make North Korea understand that repeating provocations would not serve the country's interest, the official said.