USS George Washington - 24 November 2010
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S Korea and the United States hold joint naval drill

28 November 2010 Last updated at 05:34 GMT

South Korea and the United States have started joint military exercises, amid heightened tension in the wake of North Korea's deadly attack on a South Korean island.

A US aircraft carrier and other naval vessels have joined South Korean ships in live-fire and bombing drills.

The BBC's Jack Izzard reports on the military and political events in the Yellow Sea.