A truck carrying materials for Madonna's "MDNA" Tour overturned in Sweden, blocking parts of a highway and injuring at least one person, the AP reports.

The Tuesday morning incident occurred on the way to Goteborg in the southwestern region of the country. Police don't know why the truck flipped over, and it was unclear if the accident would affect Madonna's Wednesday show.

Madonna is touring in support of MDNA, her latest album. She's kept the tour in the news by being her usual provocative self, flashing her nipples on stage, covering a Lady Gaga song she once called "reductive" and rubbing Deadmau5 the wrong way.

Photos of the wreck:

madonna tour truck overturns

madonna tour truck overturns

More Madge:

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