The G20 summit took place on Friday and Saturday in Hamburg, where world leaders and finance ministers from 20 of the world's leading countries met to discuss pressing political and economic issues.
The protests were marred by clashes with police, which used water cannon and tear gas to disperse demonstrators. According to reports, more than 200 law enforcement officers were injured in the clashes and almost 300 protesters were detained, about half of whom were arrested.
On Saturday, German Justice Minister Heiko Maas said that perpetrators of violence during the demonstrations will face the full force of the law.
"These are not mere protesters, they have committed serious criminal acts, including arson. The responsibility for this immoral violence is borne by the perpetrators. Our state of law will use all the means at its disposal to hold them responsible in a court of law," Maas told the Bild am Sonntag newspaper.
"The city of Hamburg will assess [the damage] very quickly. Then on Monday or tomorrow, I think, as I discussed at the meeting with [Finance Minister] Wolfgang Schaeuble, the Bundesrat and the government will discuss the issue, and we will decide what can be done," Merkel said.
