US coach Arena was in contact with Pulisic during Dortmund explosion

Abdul Beset A. was detained in connection with the three explosions that rocked the Borussia Dortmund bus late Tuesday, injuring a player and a police officer.

'The decision to play the match today at 18.45 (local time) was made last night at BVB stadium in co-operation and complete agreement with clubs and authorities, ' Uefa communications director Pedro Pinto told The Associated Press.

Dortmund midfielder Nuri Sahin said the attack showed that there is so much more than football in the world.

Bartra underwent surgery on a broken wrist after he was hit by flying glass, Dortmund president Reinhard Rauball said.

Dortmund fans with a banner wishing Marc Bartra a swift recovery during the first leg of the Champions League quarter final match between Borussia Dortmund and AS Monaco in the Signal Iduna Park.

Dortmund were forced to play the match less than 24 hours after the incident and looked noticeably shocked as they suffered a 3-2 loss in front of anxious fans.

"I had contact with a few people but I didn't want to bother them with my silly questions so I was waiting like all the rest of the world for more information".

Many, including manager Thomas Tuchel, were critical of the timing of the match suggesting the players and staff involved needed more time to come to terms with what had happened to them just 24 hours before. I saw the game and I was really proud of Borussia Dortmund, how they handled it, how they created this atmosphere.

Three days after the attack that injured Bartra and a policeman who suffered trauma from the noise of the blasts, investigators are still scrambling to find possible culprits.

Germany has been on high alert since a series of jihadist attacks a year ago, including a deadly Christmas market truck rampage in Berlin.

They linked the attack to German involvement in the fight against Islamic State in Syria and also mentioned the Berlin Christmas market attack carried out by an IS-inspired terrorist in 2016.

Dortmund were understandably subdued in the first half of Wednesday's game, despite improving after the interval, and Monaco head coach Jardim said players could not concentrate.

"UEFA is eager to continue playing and, of course, we have to keep it going but we still want to be competitive".

Interior Minister Thomas de Maiziere, who attended the match, said the "fascination" surrounding football drove terrorists to try to disrupt it.