Two people reportedly die in Black Tuesday in Yemen . Crowds march through downtown Sanaa . Crowds marched through downtown Sanaa , where government forces allegedly gunned down protesters -- the latest in a series of confrontations between those loyal to embattled President Ali Abdullah Saleh , demonstrators and rival factions . CNN has not independently released the details of casualties .
Two people reportedly die in Black Tuesday in Yemen . Crowds march through downtown Sanaa . CNN has not independently released the details of casualties .