G20 unrest continues as protesters loot supermarket and riot in street for second night

Anti-G20 protesters have rioted for a second night through the streets of Hamburg.

Activists set up street barricades, looted supermarkets and attacked police with slingshots and petrol bombs as the city hosts the Group of 20 leaders.

Around 500 people are reported to have looted a supermarket in Hamburg on Friday night. Credit: Axel Heimken/dpa via AP
Heavily armed special police forces walk through the so-called 'Schanzenviertel' area. Credit: Bodo Marks/dpa via AP

Police described the riots as extremely violent in the early hours of Saturday in the city's Schanzenviertel neighbourhood.

Hundreds of officers went into buildings to arrest rioters while being attacked with iron rods and Molotov cocktails thrown from the roofs.

Activists started street fires in Hamburg on a second night of rioting. Credit: AP Photo/Michael Probst

Thirteen activists were arrested when special units stormed one building.

Around 500 people looted a supermarket in the neighbourhood as well as smaller shops.

Cars were also torched and street fires were lit as activists built barricades with garbage cans and bikes.

World leaders will come together later on Saturday to tackle issues including terrorism, climate change and trade, in the final day of the G20 summit.