"That gives you a feeling of powerlessness". During the match, small knots of armed police guarded access to the stands.
The Federal Prosecutor's Office said in a statement on Thursday there was no evidence that the detained man, identified as Abdul Beset and who arrived in Germany via Turkey at the start of 2016, had taken part in carrying out the attack.
"An Islamist background appears to be possible", she said, noting that the letter demanded that Germany withdraw its deployment of Tornado reconnaissance missions in an worldwide coalition fighting the ISIL group, and close the USA airbase in the western German town of Ramstein.
Koehler said there are "significant doubts" about a second claim of responsibility found online suggesting a left-wing extremist motive for the bus attack.
As the investigation continued, the match delayed by the blasts got underway.
Dortmund were asked by UEFA to play the match on Wednesday night after the fixture at Signal Iduna Park was initially postponed when explosions hit their bus as it left the hotel, with defender Marc Bartra being taken to hospital.
"We are all with Bartra". The stadium announcer called out the Spanish defender's first name three times and the crowd roared "Bartra!" in response.
DORTMUND, Germany (AP) - Marc Bartra, who was wounded in an attack on the team bus of German soccer club Borussia Dortmund, says the experience was the "hardest 15 minutes" of his life.
Germany midfielder Weigl conceded the atmosphere had been particularly tense but understood the decision to go ahead with the game.
However, Dortmund was not letting it go easily and with six minutes remaining on the clock, Kagawa controlled the box in ball, kept his calm and netted it in to reduced the deficit to a solitary goal. "For everybody, it is very hard to go to work after yesterday".
In turn, the Argentine tactician will want to make improvements where possible, and Pulisic could be one of those players brought in this summer to improve the overall quality in the squad.
Dortmund CEO Hans-Joachim Watzke stated the club would not bow to terrorism, but it doesn't seem to be a sentiment Tuchel shares.
Peter Sobeck, a 55-year-old lifelong Dortmund fan, said he was shocked that players were targeted in a relatively small European city like Dortmund, a western German city that has just under 600,000 residents. "I know soccer is important, but we are only human".
Chancellor Angela Merkel branded the attack "a repugnant act" and praised the "great solidarity" shown by both teams' fans. She said she's hoping for a "peaceful and good game" on Wednesday night, which will be attended by German Interior Minister Thomas de Maiziere.
Borussia Dortmund used their official Twitter account to help find beds for those in need, using the hashtag #bedforawayfans.