Greeks protest austerity cuts at May Day rally – CNN.com

Waving red flags, the crowd at times surged toward the line of police, who wore helmets and carried riot shields. The police pushed them back each time.

Protesters threw objects toward police, and scattered fires were burning on the streets. A van belonging to state broadcaster ERT was set on fire, and 19 people were taken in for questioning, a spokesman for the Greek national police told CNN.