Death toll from German Christmas market attack rises to 6

Mourners are laying flowers near the scene of the deadly Christmas market attack as investigators puzzle over the motive of the suspect.
Germany has been strengthening security measures around Christmas markets in reaction to an attack in 2016 in which a man killed 12 people by driving a truck into a market in central Berlin.
BERLIN, Dec 23 (Reuters) - Here is what we know so far about the man who was arrested as the suspected driver in a car-ramming attack on Friday at a Christmas market in the German city of ...