Police beat protesters and fired tear gas and water cannons at thousands who rallied Saturday in open defiance of Iran's clerical government, sharply escalating the most serious internal conflict since the 1979 Islamic Revolution. Watch some of the videos shared on the web.
GRAPHIC CONTENT: BYSTANDER IS FATALLY SHOT (YouTube user: June 20, 2009)
MILITIA SHOOTS AT PROTESTERS (BBC: June 20,2009)
SILENT MARCH FOR PROTESTERS DEAD (YouTube user: June 17, 2009)
POLICE IN MOTORCYCLES HIT PROTESTERS (YouTube user: June 14, 2009)
MARCHING IN TEHRAN ( YouTube user: June 13, 2009)