Yonhap news agency says
that the militaries of North and South Korea have exchanged artillery
fire along their disputed western sea border.
North Korea fired several rounds of land-based artillery off the
west coast Wednesday, two days after it designated two no-sail zones
along the sea border, Yonhap reported.
Yonhap, citing no source, said South Korea's military returned fire. The report did not provide further details.
South Korea's Defense Ministry said it could not immediately confirm the report.
western sea border is a constant source of military tension between the
two Koreas. Their navies fought a brief yet bloody gunbattle in
November that left one North Korean sailor dead and three others