South Korean President Roh Moo-hyun said Monday that North Korea's claimed nuclear weapons test would make it difficult to maintain Seoul's engagement policy toward its communist neighbor.
The North's move will "seriously affect" South Korea's policy.
"This is a warning as well as my prediction," Roh told journalists after a summit with new Japanese Prime Minister Shinzo Abe. "Under this situation, it's difficult for South Korea to maintain an engagement policy."
Still, he said Seoul would seek to resolve the situation through dialogue.