North Korea has fired artillery shells near its sea border with South Korea – a day after the South began annual military drills to better deal with North Korean provocations.
South Korea's Joint Chiefs of Staff said in a statement that North Korea fired about 100 shells off its west coast and 150 rounds off its east coast on Tuesday night.
It said the South Korean military broadcast messages several times asking North Korea to stop the firing but there were no reports of violence between the rivals.
South Korea's military said the shells did not land in South Korean territorial waters but fell inside maritime buffer zones the two Koreas established under a 2018 inter-Korean agreement aimed at reducing frontline animosities.
It is the second time North Korea has fired shells into the buffer zones since last Friday when it shot hundreds of shells there in its most significant direct violation of the 2018 agreement.
South Korea's military said North Korea must halt provocations that undermine peace and stability on the Korean Peninsula.
It said it is boosting its readiness and closely monitoring North Korean moves in co-ordination with the US.
In recent weeks, North Korea has conducted a spate of missile and artillery launches in what some experts say is an attempt to expand its weapons arsenal and boost its leverage in future negotiations with its rivals.