Paris: France has appealed to North Korea for avoiding such steps that may escalate the tension after Pyongyang announced having entered a "state of war".
"France is deeply concerned by the situation in the Korean peninsula" and urging North Korea to refrain from "further provocation", Xinhua quoted Philippe Lalliot, French spokesperson for foreign Affairs, as saying on Saturday.
It has asked North Korea "to fulfill its international obligations," to solve the issue "within the framework of UN relevant resolutions" and "quickly resume the path of dialogue".
In a statement, Pyongyang on Saturday declared having entered a "state of war" with South Korea.
All matters between the two Koreas would be handled according to wartime condition, North Korea said, adding that the long-standing condition of the Korean peninsula of being neither peace nor war was finally over.
The statement, issued jointly by the North Korean government, party and other organisations, warned any military provocation near the land or sea border of the two sides would result "in a full-scale conflict and a nuclear war".