BERLIN—German police detained an Afghan man suspected of stabbing two people to death, including a two-year old, putting immigration back at the center of the campaign for next month’s election. Armed with a kitchen knife,

A stabbing attack at a park in the German town of Aschaffenburg on Wednesday left a 2-year-old child and a 41-year-old man dead, and two others seriously injured, police said. A 28-year-old man taken into custody shortly afterwards is the suspect in the attack,

This is the second stabbing in Tel Aviv in four days, after another person was attacked on Saturday before being shot by an armed civilian. Tuesday's attack took place on Nahalat Binyamin Street, an area popular for its restaurants and nightlife,