This still image taken from video shows lawmaker Kim Sun-Dong (bottom) of the Democratic Labor Party detonating a tear gas canister and throwing it toward the chairman's seat at the National Assembly.
The U.S. and Japan are conducting joint exercises in the Sea of Japan, near the coast of South Korea. Here, the USS John McCain (L) pulls alongside the USS George Washington in the Sea of Japan.
MC3 David Juan Pinalez /AFP/Getty Images
Destroyed houses on Yeonpyeong island, South Korea, a day after North Korea fired dozens of artillery shells upon it, killing two South Korean civilians and two South Korean soldiers.