The arrest of an Afghan asylum seeker suspected of killing two people in a knife attack targeting children in a German park has prompted calls for a much tougher migration stance and fired up campaigning for Germany's Feb.

A 28-year-old Afghan man is in police custody after attacking a group of kindergarteners in the German city of Aschaffenburg, killing two people, including a 2-year-old.

BERLIN – The arrest of an Afghan asylum seeker suspected of killing two people in a knife attack targeting children at a German park has prompted calls for a much tougher migration stance and fired up campaigning for Germany’s Feb 23 national election.