North Korea on Tuesday fired artillery into the sea near its tense western sea border with South Korea, injuring at least four South Korean soldiers and two civilians, the Yonhap news agency reported. At least 200 rounds of artillery hit an inhabited South Korean island 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. Images of plumes of smoke were quickly broadcast on Yonhap television from the island of Yeonpyeong, but it was not immediately clear what the artillery had hit. The island that was hit has a total of about 1,300 residents, a fisherman who lives on the island told Yonhap. The South Korean government immediately called an emergency meeting of its security ministers. Source: CNN