A 28-year-old man from Afghanistan has been arrested following a knife attack in a park in the German city of Aschaffenburg on Wednesday in which two people were killed, including a toddler, police said.

Following a fatal knife attack in the southern city of Aschaffenburg, the German Police Union (GdP) says a "threshold has been crossed," with urgent reinforcements to security authorities needed. "We need quick solutions now,

Police identified the suspect as an Afghan man. Politicians gearing up for an election responded with comments about migration and law and order.