North Korea has threatened to retaliate against South Korea for “reckless” military drills near their disputed sea boundary, but Seoul denies any training in the immediate area, the scene of several bloody naval skirmishes in recent years.
The wrangling came five days after South Korea accused the North of initiating an exchange of gunfire along their land border.
No casualties were reported, but the incident was a reminder of persistent tensions on the peninsula.
North Korea’s Ministry of the People’s Armed Forces accused South Korea of mobilising fighter jets and warships on Wednesday for drills on their western sea boundary.
“Such reckless move of the military warmongers of the south side is the height of the military confrontation,” it said in a statement carried by North Korean state media.
“This is a grave provocation which can never be overlooked and this situation demands a necessary reaction from us.”
North Korea said the South’s drills violated 2018 agreements which required both countries to halt firing exercises along their land and sea borders to lower frontline tensions.
South Korea’s Defence Ministry said the drills didn’t break the agreements because they took place in its western waters about 300km from the sea boundary.
A ministry official, requesting anonymity because of department rules, said South Korea had been maintaining military readiness without violating the 2018 agreements.
On Sunday, South Korea said several bullets fired from the North struck one of its frontline guard posts and its soldiers fired 20 warning shots in return.
South Korea sent a message asking the North to explain the incident, but the North was yet to reply, the Defence Ministry said.
Relations between the two Koreas improved significantly in 2018 as their leaders held three rounds of talks. But much of the rapprochement stalled as broader diplomacy between North Korea and the United States came to a standstill because of disputes over the North’s nuclear disarmament.
The Koreas have been divided along the world’s most-heavily fortified land border since the end of the 1950-53 War.
Their poorly marked western sea boundary witnessed naval clashes in 1999, 2002 and 2009.
© AAP 2020