Oil prices have risen to their highest level for two years as Libya's Colonel Gaddafi defies a widespread uprising
A currency trader walks past a screen showing South Korea's benchmark stock index at the Korea Exchange Bank in Seoul on February 22, 2011. South Korean stocks closed 1.76 percent lower as investor sentiment was cooled by concerns that political turmoil in Libya would spur a hike in oil prices, analysts said. (AFP/Getty Images)
