North and South Korean warships

North and South Korean warships exchanged warning shots near a disputed sea border Tuesday, days after the two sides agreed to high-level talks that many hope could improve inter-Korean relations, according to Voice of America.
Seoul defense officials say a South Korean naval ship fired a warning shot after a North Korean vessel crossed the so-called Northern Limit Line off the western coast. The North Korean ship returned fire before retreating.
The officials, who spoke anonymously, said neither ship intended to hit one another and that no injuries or damage occurred in the early Tuesday incident.
Such incursions are not uncommon, since North Korea has never recognized the de facto Yellow Sea border, which was drawn by the United Nations at the end of the 1950s Korean War