Berlin Knife Attack: Police arrest six over 'city-endangering' plot
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Berlin police say they've detained six people who planned a knife attack at Sunday's half-marathon.
One of them prepared to stab spectators and runners during the event. It was reported that the main suspect has links to Anis Amri - a Tunisian man who killed 12 people in the city, in a December 2016 truck attack. A record 36,000 athletes entered the 38th Berlin half-marathon, the biggest in Germany.