The police were killed and several others were killed and several others were injured in the southwestern German city of Southern West, Germany.
Police said the driver was arrested and said they were investigating whether other sinners.
Authorities asked to prevent the refrain from the city center on Monday.
There were recent attacks in Germany. Two weeks ago, a 24-year-old Afghan man looking for asylum asylum entered into a union demonstration Munich, 2 year old and killed and several people were injured.
In December, a Saudi doctor living in Germany is suspected that it is more than a decade drove his car into a Christmas market In the Central city of Maqdebur, six people were killed and hundreds of others were injured.
Mannheim, who has a population of about 320,000, was in the headlines where an Afghan citizen living in Germany last year stabbed people who stabbed In a demonstration, kill a police officer who fled to stop the attack.