Fighters police special forces GSG-9 in the Federal state of Baden-württemberg have arrested a man suspected of involvement in the explosion in the bus of Dortmund football club "Borussia" on the evening of 11 April. On Friday, April 21, reported the newspaper Spiegel Online, with reference to sources in law enforcement bodies.

According to the newspaper, the alleged perpetrator of the attacks, 28-year-old Sergei V. lived near the city of tübingen. According to the investigation, he is not an extremist, but acted purely "for selfish reasons".

The evening of 11 April, on the eve of the match of UEFA Champions League against Monaco, near the bus of football club "Borussia" in Dortmund exploded three bombs filled with metal pins. The result was wounded team defender Marc Batra and nearby police.