German police arrest boy accused of knowing about fatal knife attack in advance
www.bbc.com
Police said they could not rule out a "terrorist" motive after the attack in the city of Solingen.

Three people have been killed and another four seriously injured in a knife attack in the western German city of Solingen, police say.

The attack happened during a festival in the city centre on Friday evening. The attacker is reported to be still at large.