By Kara Fox and James Masters, CNNUpdated 2:31 PM ET, Thu July 6, 2017

Hamburg (CNN) German riot police have clashed with protesters in Hamburg on Thursday evening as world leaders arrived ahead of Friday's G20 summit.

Police used water cannon as protesters threw smoke bombs, while officers clashed with demonstrators at the anti-capitalist Welcome to Hell protest.

The demonstration is taking place approximately two miles from where the G20 summit is taking place.

Rebel Scum!!!