Prosecutors: Man arrested over attack on German soccer team

FILE - In this April 11, 2017 file photo a window of Dortmund's team bus is damaged after an explosion before the Champions League quarterfinal soccer match between Borussia Dortmund and AS Monaco in Dortmund, western Germany. (AP Photo/Martin Meissner, file) (The Associated Press)

FILE - In this April 11, 2017 file photo Dortmund head coach Thomas Tuchel stands outside the team bus after it was damaged in an explosion before the Champions League quarterfinal soccer match between Borussia Dortmund and AS Monaco in Dortmund, western Germany. (AP Photo/Martin Meissner, file) (The Associated Press)

FILE - In this April 11, 2017 file photo police officers stand in front of Dortmund's damaged team bus after explosions which injured two people before the Champions League quarterfinal soccer match between Borussia Dortmund and AS Monaco in Dortmund, western Germany. (AP Photo/Martin Meissner, file) (The Associated Press)

Prosecutors say a 28-year-old German-Russian citizen has been arrested on suspicion of carrying out the bomb attack against a bus carrying members of the Borussia Dortmund soccer team.

A Dortmund player and a policeman were injured in the triple blasts last week as the bus was heading to the stadium for a match against AS Monaco.

Investigators found notes at the scene claiming responsibility in the name of Islamic extremists, but quickly doubted their authenticity.

Federal prosecutors said in a statement that the suspect, identified only as Sergej W., was arrested Friday in the Tuebingen area.

They say the man is suspected of having acted for financial reasons and had speculated on Dortmund's share value dropping after the attack.