Dortmund bus attack suspect bet against the team

German police have arrested a 28-year-old market trader suspected of being responsible for an attack on the Borussia Dortmund football team.

Defender Marc Bartra, a Spain worldwide, and a police officer were injured in the triple blasts as the players and coaching staff left a hotel ahead of a Champions League match in Germany.

Three purported claims of responsibility stating a radical Islamist motive were found at the scene, on paper bearing no fingerprints, prosecutors said, adding that Islamic studies experts had voiced "considerable doubts" about their authenticity.

The suspect, arrested near the city of Tuebingen, was staying at the Dortmund team hotel on April 11, the day of the attack, CNN quoted the prosecutor's office as saying.

According to Bild, a German newspaper, the suspect allegedly bought options to short sell 15,000 shares of Borussia Dortmund stock for 78,000 euros ($83,600).

Had the explosives killed a member of the team and if the club's share price had dropped, the value of his stock would have increased significantly, the Guardian reported.

The blast shattered the bus windows, and Spanish global Marc Bartra, 26, broke his wrist.

Police patrol outide the stadium after the team bus of Borussia Dortmund had some windows broken by an explosion some 10km away from the stadium prior to the UEFA Champions League 1st leg quarter-final football match BVB Borussia Dortmund v Monaco in Dortmund, western Germany on April 11, 2017.

She said investigators believe W. acted alone - there are "no indications of possible helpers" - but would continue to probe the possibility he had accomplices.

Based on the type of detonator and explosive involved, German authorities had assumed "terrorist involvement", spokeswoman Frauke Koehler said at the time.

Ralf Jaeger, the top security official in North Rhine-Westphalia state, said the suspect had hoped to earn millions.

He said the suspect had been under close surveillance for about a week and that the evidence against him was significant. A motorcycle police officer suffered inner ear damage from the blast.

Captain Marcel Schmelzer said the team hoped to learn further details about the background to the attack.

The fact that, aside from Bartra, "no others were wounded or even killed, was - as we know today - exclusively due to huge luck", said the statement from the club, which plans to step up security by employing GSG 9 and other elite police veterans.

After the three identical notes claiming responsibility for the attack were found at the scene investigators initially considered the possibility that it might have been the work of Islamic extremists.

  • Julie Sanders