Masked demonstrators smashed shop windows and torched parked vehicles on Friday, and other groups attempted to block G-20 delegates’ routes to the summit. An estimated 100,000 demonstrators acted peacefully, Reuters reported.

The extent of the damage remains unclear at this time.

http://www.huffingtonpost.com/entry/half-the-city-is-burning-hamburg-rocked-by-violent-anti-g-20-protests_us_595ff5bde4b02e9bdb0cbd3c?lx8