Bayern Munich have come under fire after posting a picture that appeared to show one of their players dressed as a suicide bomber for Halloween.
Several first-team stars posed for the photo in make-up, with defender Niklas Sule - looming large in at the back - and forward Sandro Wagner - whose distinctive facial hair is visible beneath a Batman mask - among those visible.
But one player seemed to be wearing traditional Arab robes and a headscarf, complemented by dark shades, a fake moustache and a box plastered with the word "vorsicht", German for "danger" or "caution".
The Bundesliga giants uploaded the photo to their official Twitter account and the post has attracted a heavy backlash, with some accusing the costume of being racist and calling on the club to apologise.
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One said: "Seriously? Someone dressed up as a bomber?"
Another user accused the club of being "tone deaf", while another condemned the player in question for thinking "it would be funny to portray Arabs as terrorists".
"He represents Bayern and a large part of Bayern's fanbase are Arabs," the tweet adds.
"We demand an apology."
Others simply replied to the photo - which has since been deleted - with the word "racism".
Bayern - who sit second in the Bundesliga table behind Borussia Dortmund - are yet to respond to the criticism, and the photo is still present on the Instagram page of star defender Jerome Boateng.
The player in question is yet to be identified.