RT News - December 21, 2016 (17:00 MSK)

German police are hunting for a Tunisian national whose ID was found in the truck that rammed into a crowded Berlin Christmas market. The suspect reportedly sought asylum in Germany, and was already on the radar of intelligence services. Al-Qaeda-related material is reportedly found at the home of the murderer of the Russian ambassador in Turkey. Russia, Turkey and Iran pledge to safeguard agreements on Syria, prompting some awkward questions for the US State Department.