The prosecutor said Jens B. had run-ins with the law relating to violent conduct, property damage and fraud, but all charges had been dismissed.
However, investigators found no signs of a political motive in their initial searches of the apartments and of several cars and a container belonging to the man, Kuhlisch said.
Muenster police spokesman Andreas Bode said the motive of the driver is still unknown and that authorities were looking into the possibility that other suspects may have fled the scene. He says, "this was a terrible and sad day for the people of Muenster, all of Germany ... and also the people of The Netherlands, who were sitting here and became victims".
The German news agency dpa reports that a large-scale police operation is underway and that much of the area is cordoned off to the public. Two people were killed in the crash and the van driver took his own life.
Der Spiegel reported that police were investigating a similar incident that occurred in the eastern German city of Cottbus on Friday evening, when a man drove his vehicle into a group of people, injuring two, before fleeing. The perpetrator killed himself upon performing the attack.
German police told NBC News that there is no indication that the incident is a terror attack motivated by Islam and officials added that the investigation is ongoing.
German police say two people died and about 20 others were injured when a person drove a van into a crowd on Saturday.
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Authorities have identified the two victims killed by the van crash as a 51-year-old woman from Lueneburg county, 300 kilometers (186 miles) to the northeast and a 65-year-old man from nearby Borken county. Their names weren't given as is customary in Germany.
The 48-year-old German man, believed to be the sole perpetrator in Saturday's attack, has been identified as Jens R, who was reportedly an industrial designer.
Earlier today, Interior Minister Horst Seehofer said the government would do everything possible to protect citizens, but added: "We have again experienced that. absolute security is unfortunately not possible".
Berlin police have yet to confirm the planned attacks.
A van crashed into a crowd outside a popular bar Saturday in the western German city, killing three people and injuring 20 others.
The foreign ministry in the Netherlands said two of the injured were Dutch, one of whom was in a critical condition.
The man who drove a vehicle into a group of people sitting outside a restaurant in Germany yesterday was known to police.