Knife attack on children: arrest warrant for attempted murder. Two knives and a hammer were seized as possible murder weapons.

The 21-year-old suspect was visiting his father and then attacked the two children. Before the arrest, the son is said to have told his father that there was information on his cell phone that would explain the crime. There is no evidence of a politically motivated act. It was the second knife attack on students in North Rhine-Westphalia. Last week, four students at a Wuppertal high school were attacked with a knife.