They’re still sweeping up broken glass on West Florissant Ave. in Ferguson, Mo., after looting and rioting earlier this week, and now business owners in San Francisco are joining them after demonstrators shattered glass in the city’s Union Square Friday night.

Jill Tucker and Kevin Fagan of the San Francisco Gate write:

A march for racial justice Friday night turned ugly as hundreds of protesters converged on Union Square and frightened crowds of shoppers by smashing windows and attacking police.

Shopkeepers lowered metal gates to protect their entries while shoppers with children dashed inside the giant Macy’s store and cowered behind locked doors. Some protesters broke shop windows and screamed at police, while others threw objects including bottles at officers.

This young woman was among the protesters.

Some reflection the morning after:

Related:

‘Mostly peaceful’ protesters laugh after SF officer struck by thrown barrier [Vine]

Seattle demonstrators ruin kids’ Christmas for Mike Brown

‘We shut sh*t down’: #DCFerguson protesters block Metro, Georgetown traffic [Vine, photos]

Demonstrators shut down St. Louis Galleria on Black Friday with mass ‘die-in,’ protests [Vine]

#NotOneDime, #StopTheParade and the failure of Ferguson hashtag activism

#ShutItDown: Peaceful protesters blocking ambulances, access to hospitals

#ShutItDown: Agitators implement social justice through nationwide traffic blockage…cuz Ferguson! [photos, Vine]

‘Standoff at Lincoln Tunnel’: Night 2 of Ferguson protest in NYC [photos]