Aris Messinis / AFP/Getty Images
Anti-riot police clash with protesters during a demonstration in Athens on Thursday. The Greek capital was "suffocating" under a barrage of tear gas as 5,000 protesters swamped riot police outside parliament, 12 days after the police killing of a teenager sparked riots. Greek authorities had earlier this week sent out appeals to foreign countries for fresh stocks of tear gas -- and warned the public to steer clear of the city's center after a coalition of students, teachers, unions and left-wing demonstrators vowed to step up anti-government rallies.
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