South Korean President Lee Jae Myung (C) is walking with Ursula von der Leyen (R), president of the European Commission, and Antonio Costa, president of the European Council, ahead of their summit in Brussels on Wednesday. Photo by Yonhap

SEOUL, June 11 (UPI) -- South Korean President Lee Jae Myung and leaders of the European Union on Wednesday condemned North Korea's military cooperation with Russia and expressed "grave concern" over Pyongyang's nuclear and ballistic missile programs, while also backing Seoul's efforts to resume dialogue with the North.

The statement was issued following a summit among Lee, European Commission President Ursula von der Leyen and European Council President Antonio Costa at the EU headquarters in Brussels.

"We condemn support by third parties, in particular the DPRK, which enable Russia to sustain its war of aggression against Ukraine," the statement said, using the official acronym for North Korea. "We strongly condemn Russia-DPRK illegal military cooperation."

The leaders also expressed "grave concern over the DPRK's nuclear and ballistic missile programs" and reaffirmed their commitment to the complete denuclearization of the Korean Peninsula.