“No explanation for the attack”. The key identifier in the story is ‘Bosnian’.
Via The Independent:
At least two people have been killed in Austria by a man who ploughed his car into crowds in Austria’s second-largest city and then reportedly started stabbing people.
A witness told the Wiener Zeitung that dead bodies were left lying face down in the street after the vehicle sped through the city’s historical Herrengasse and Hauptplatz (main square).
Around 50 pedestrians were injured during the rampage and ORF television said the driver had been arrested and the area sealed off.