Transcript for Protesters clash with police at G-20 summit

And as world leaders hold their high stakes meetings at the g20 summit, thousands of angry protesters have been hitting the streets of Hamburg, Germany. There was more chaos overnight, this morning more protests in the works. ABC's James Longman has been right out there in the thick of it. James, good morning to you. Reporter: Dan, Paula, good morning. Another huge night of unrest. Today is meant to be the main day of protest. People bused in for what they're calling solidarity without borders. Parts of this city are looking like a war zone. Overnight utter chaos on the streets of Hamburg as they prepare for another round of meetings. Protesters setting up blockades, looting and attacking police. Nighttime and things have got a lot worse on the streets. Water cannon hitting protesters behind us and continue to throw things at the police. Nearly 200 officers injured in clashes. More than 100 detained. Facing a barrage of project ties thrown from nearby roof, officers in full riot gear making their way into buildings, arresting those inside. Some 500 people looting this supermarket. During the day anti-globalization demonstrators marched peacefully expressing a range of grievances. I don't think three fascists who have arrived yesterday have a right to be here namely trump, Putin and erdogan. Reporter: There's always protests at g20 against a perceived corrupt world order. The police moving in with a water cannon just deployed. This is a big game of cat and mouse. This morning president trump a target complimenting Angela Merkel and Germany's response to the violence on the street. It's been really incredible the way things have been handled without much interruption despite quite a few people. And they seem to follow your G20s around. Reporter: We think 12,000 people are here abut more and more are arriving. I think we're in for another day of anger. Be safe out there.

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