Football’s power to unite was on show once again as Borussia Dortmund fans reacted in typically classy fashion following a series of explosions that rocked the German city.

Dortmund were due to host French club Monaco in a UEFA Champions League quarter-final on Wednesday morning (AEST) but the match was postponed 24 hours after their team bus was the subject of a “targeted attack”.

Dortmund’s Spanish defender, Marc Bartra, was hospitalised after suffering a fractured wrist in the blasts that “deeply disturbed” the football world.

The postponement left many Monaco fans, who had travelled over for the match, without accommodation for the night.

But they were helped out by kind Dortmund supporters who began offering them accommodation using the hashtag #bedforawayfans on Twitter.

And once Dortmund posted the hashtag themselves, offers of beds, couches and food came flooding in for the stranded French fans.

Dear supporters of @AS_Monaco_EN! If you need accommodation in Dortmund, please check #bedforawayfans. #bvbasm

— Borussia Dortmund (@BVB) April 11, 2017

Images posted to Twitter showed many fans of both clubs sharing meals and drinks together, only hours before their teams do battle in what is a crucial last-eight clash in European football’s premier club competition.

#bedforawayfans and #tableforawayfans es sind alle hungrig pic.twitter.com/h4TChsRNY9

— Vespafoto 🇺🇦 (@vespafoto) April 11, 2017

https://twitter.com/tim_adlips/status/851907129493655552

The fan response put a twist on a sad day for football, with German police describing the explosions, of which there were three, as “targeted”.

They added that they found a letter at the scene of the crime but did not add further details.

‘A crisis situation’

Dortmund chief executive Hans-Joachim Watzke described the explosions as a “crisis” and said the club were stunned by the attack.

“In such a crisis situation, all of Borussia will pull together,” he said.

“The team and the coaches were shocked. Now we must channel it in some way.

“I have to express a huge compliment to our fans, who have dealt with it very well, objectively, reasonably and solidly.

“It will not be easy to get that [attack] out of the mind. I think the team will feel it on [Thursday].”

Bartra was the only player injured and Dortmund said he had broken “the radial bone in his arm”.

They added that he got “bits of debris lodged in his hand”.

Dortmund skipper Marcel Schmelzer said Bartra was in everyone’s thoughts.

“We’re all in shock and our thoughts are with Marc. We hope that he will make a speedy recovery,” he said.

The first leg of the quarter-final will kick off at 2.45am (AEST) on Thursday morning.