Protests continue ahead of Seoul G20 summit

Authorities are on high alert ahead of Group of 20 leaders' summit in South Korea's capital
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Filipino activists march outside the South Korean embassy in the Philippine capital Manila on November 8, 2010 to protest against the deportation of six of their colleagues who had intended to attend an international anti-G20 meeting in Seoul. The six were detained by immigration officials at Seoul airport upon arrival and promptly sent home. Sout Korean authorities are on high alert ahead of the Group of 20 leaders' summit in Seoul to be attended by US leader Barack Obama among other heads of state. (AFP/Getty Images)
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Filipino activists march outside the South Korean embassy in the Philippine capital Manila on November 8, 2010 to protest against the deportation of six of their colleagues who had intended to attend an international anti-G20 meeting in Seoul. The six were detained by immigration officials at Seoul airport upon arrival and promptly sent home. Sout Korean authorities are on high alert ahead of the Group of 20 leaders' summit in Seoul to be attended by US leader Barack Obama among other heads of state. (AFP/Getty Images)
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South Korean protesters hold anti-G20 placards during a rally in Seoul on November 7, 2010. Tens of thousands of South Korean activists protested against the Group of 20 summit to be held in Seoul this week, with police on high alert for violence in the capital's streets. (AFP/Getty Images)
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South Korean activists clash with riot police (in helmets) as liquid pepper spray is fired into the air by police to disperse the crowd during a rally in Seoul on November 7, 2010 against the G20 summit meeting to be held later this week. (AFP/Getty Images)
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South Korean activists clash with riot police (in helmets) as liquid pepper spray is fired into the air by police to disperse the crowd during a rally in Seoul on November 7, 2010 against the G20 summit meeting to be held later this week. (AFP/Getty Images)
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South Korean activists clash with riot police (in helmets) as liquid pepper spray is fired into the air by police to disperse the crowd during a rally in Seoul on November 7, 2010 against the G20 summit meeting to be held later this week. (AFP/Getty Images)
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South Korean activists clash with riot police (in helmets) as liquid pepper spray is fired into the air by police to disperse the crowd during a rally in Seoul on November 7, 2010 against the G20 summit meeting to be held later this week. (AFP/Getty Images)
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South Korean activists clash with riot police (in helmets) as liquid pepper spray is fired into the air by police to disperse the crowd during a rally in Seoul on November 7, 2010 against the G20 summit meeting to be held later this week. (AFP/Getty Images)
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South Korean activists clash with riot police (in helmets) as liquid pepper spray is fired into the air by police to disperse the crowd during a rally in Seoul on November 7, 2010 against the G20 summit meeting to be held later this week. (AFP/Getty Images)
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Joseph Purugganan (L) and Josua Mata (2L), two of six Philippine activists deported from Seoul, talks during a press briefing in Manila on November 7, 2010. The six activists were planning to take part in alternative meetings that were set to run parallel to the G20 summit in South Korea. Upon being put on their flight home the six were told by South Korean authorities that they were blacklisted and could not enter the country, the activists said. (AFP/Getty Images)