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Sat Jan 18, 2014 1:55am EST

1 of 24. Anti-government protesters help a fellow protester injured in a grenade attack during a rally in Bangkok January 17, 2014. A bomb went off as anti-government protesters marched in central Bangkok, spurring fears about rising political tension. Police and health officials said a bomb exploded near the area where protest leader Suthep Thaugsuban was marching on a road in central Bangkok, injuring at least 28 demonstrators.

Credit: Reuters/Stringer

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