One of Madonna's tour trucks has overturned in Sweden.
The 53-year-old queen of pop is in the middle of her European 'MDNA' tour.
But things were thrown into crisis after a vehicle carrying the sound system for the concerts overturned, injuring at least one person and damaging equipment, according to media reports.
Three cars were damaged, and equipment was thrown into the road, police said.
The crash happened during peak-hour traffic and blocked parts of the highway in the country's south-west.
It is not yet known if the accident will affect the singer's scheduled show in Gothenburg tomorrow night.
Christopher Akesson, a spokesman for the tour's organiser Live Nation, told the Daily Telegraph they were still working to prepare for the concert.
"I suspect that if there was anything serious, we would have had information about it by this time," he said.
Earlier in the tour, it emerged that Madonna has a bizarre "sterilisation team" who wipe away any DNA in her dressing room after shows on the tour.
Portuguese concert promoter Alvaro Ramos said he had never seen anything like it.
"We cannot even look at the dressing room, after it is ready, or even open the door," he said.
"We can only enter after her sterilisation team has left the room. There will not be any of Madonna's DNA, any hair, or anything. They will clean up -everything. In the end it is all to protect her and make her feel comfortable.
"I do understand it, but it is taken to extremes."
