A man armed with a knife attacked people on a bus in the northern city of Luebeck on Friday, injuring 10 including one seriously before he was arrested, police said, adding there was no indication he was radicalized or had a terrorist motive, Reuters reports.
The police added that a backpack was found in the bus from which smoke was appearing. It was examined by a bomb squad, which found a “fire accelerant” but no explosives.