A total of four people who were detained by police in Germany, according to media reports; they are said to be associated with Tunisian man Anis Amri, who rammed people at a Christamas Berlin market in December 2016, killing 11 people.
One of those detained is suspected of planning knife attacks against passers-by at Sunday’s Berlin half-marathon, according to Die Welt newspaper. The motive behind the planned attack was revenge.