North Korea fired artillery toward its tense western sea border with South Korea on Tuesday, killing at least one South Korean soldier, the Yonhap news agency reported.
Two civilians and 13 other South Korean military personnel were injured, with three of the soldiers seriously hurt, Yonhap said.
At least 200 rounds of artillery hit an inhabited South Korean island in the Yellow Sea after the North started firing about 2:30 p.m. local time, Yonhap said.
South Korea's military responded with 80 rounds of artillery and deployed fighter jets to counter the fire, the report said.
The South Korean army also raised its alert condition, the report said.