Violent clashes on the streets of Hamburg: Putin and Trump meet

US and Russian presidents, Donald Trump and Vladimir Putin, met and shook hands for the first time at the G20 summit in Hamburg, reports Patria news agency.

- They shook hands and told each other that they would meet separately later - Kremlin spokesman Dmitry Peskov stated, reports AFP.

Clashes with police have been ongoing since Thursday after far-left activists threw bottles, firecrackers, and other objects at police officers. Police responded with water cannons and tear gas, world media report.

Demonstrators are setting up barricades on the streets, burning cars, throwing firecrackers, and clashes are also occurring in front of the hotel where Melania Trump, wife of US President Donald Trump, is staying.

The First Lady of the United States has cancelled her announced activities in Hamburg due to fierce protests for security reasons.

Police announced that 111 police officers were injured in clashes with demonstrators in the city, twenty-nine people were arrested, and 15 were detained, reports the German agency DPA. 

Four police helicopters are flying over the city. NTV television showed burnt-out vehicles, as well as broken shop windows and a local court, destroyed since last night's clashes.

At the head of yesterday's procession, demonstrators carried banners with the inscriptions "Smash the G20" and "Welcome to Hell" - which is the main motto of the protest organizers. 

During the summit of the twenty most economically powerful countries in the world, 20,000 police officers are responsible for security, and according to German police estimates, more than 100,000 demonstrators are expected. These are the largest protests against the leaders of the world's most powerful countries to date.