HAMBURG, Germany (AP) -- The Latest on the G-20 summit in Hamburg (all times local):

9:05 p.m.

German police say organizers of a protest against the Group of 20 summit have declared the march over after trouble broke out at the start of the demonstration in the northern city of Hamburg.

Officers used water cannons and pepper spray to disperse black-hooded protesters at the event dubbed "G-20: Welcome to Hell." Police say the masked protesters attacked them with bottles, stones and other objects and set fires in the street.

More than 100,000 protesters are expected in the city for the summit that takes place Friday and Saturday. Hamburg has boosted its forces so that 20,000 officers are on hand to patrol its streets, skies and waterways.

U.S. President Donald Trump and Russian President Vladimir Putin are among those attending the summit hosted by German Chancellor Angela Merkel.