None of the two Islamists arrested for last week’s bomb attack near a bus from the Dortmund Sports Club are linked to the attack—although the arrested Iraqi refugee has been shown to be a member of an ISIS death squad—and the explosives used appeared to have come from German army supplies.
An official document leaked to Die Welt newspaper suggested the bombers wanted to “incite a backlash against Muslims” and that the three letters found nearby, which claimed the bombing on behalf of Islamists, “were fabricated.”
Furthermore, police said, “military-grade explosives” were used to target the bus of the city’s football team, and the suspicion of culpability has now shifted from Islamists to the “far right.”
The pipe bombs, filled with shrapnel, exploded near Dortmund’s vehicle, injuring the Spanish defender Marc Bartra and a police officer.
“The explosive in the pipe bombs, which were filled with metal shrapnel, seems to derive from the inventory of the army. But we are still investigating that,” a police source told the newspaper.
The military-grade detonators could have been wired only by someone with “professional skills,” the official added.
Joachim Herrmann, Bavaria’s interior minister, said the “truly worrying” aspect of the Dortmund attack was the “technically perfect construction of the explosive devices.” He warned that similar events could take place on “any other street in Germany.”
The alert circulated to regional police offices said more “publicity-seeking” attacks were likely. “It is clear that this was not only about football but about achieving maximum publicity . . . Therefore there are similar risks — for instance, for pop concerts,” said Herrmann.
More than 100 police officers and detectives have been assigned to the Dortmund investigation.
The federal criminal police office, Germany’s equivalent of Scotland Yard, raised the national threat warning to the second-highest level on Friday. The move was prompted by the belief that suspects are still at large, have advanced bomb-making skills, and are willing to hit high-profile targets for maximum publicity.
Two were arrested in Dortmund after the attack, one of whom is still in custody. He is an Iraqi asylum seeker who led an ISIS death squad but has not been linked to the bus attack.