Last month, a 2-year-old girl and her mother died two days after they were injured in a car-ramming attack on a union demonstration in Munich. A 24-year-old Afghan man who came to Germany as an asylum-seeker was arrested, and prosecutors said he appeared to have an Islamic extremist motive.

Police in Mannheim, Germany asked people to avoid the downtown area amid an ongoing operation after a vehicle reportedly hit a crowd.

An 83-year-old woman and a 54-year-old man were killed and several more were injured Monday in a suspected car-ramming in the west German city of Mannheim, officials said.