One of Madonna's tour trucks has been involved in a road accident in Sweden.

Police say a truck carrying the sound system for the Queen of Pop's concert in southwestern Sweden overturned and blocked parts of a highway.

Police say it is not clear what caused the truck to suddenly flip onto its side while driving toward Goteborg, and slide across several lanes, blocking rush hour traffic.

madonna
The tour truck in Sweden

It was not immediately clear if the incident will affect Madonna's concert in the city on Wednesday.

Police said one person was injured and three passenger cars were damaged in the accident.

Madonna, who is due to perform in London later this month, is currently on her MDNA world tour, which kicked off in Israel in June.

This is the 53-year-old singer's ninth world tour. After performing in Europe she will head to the Americas before finishing in Australia in early 2013.

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  • Madonna

    U.S pop icon Madonna at the Ramat Gan stadium near Tel Aviv, Israel, Thursday, May 31, 2012. Madonna launch her hotly-anticipated MDNA world tour with a show in Tel Aviv, kicking off a roadtrip of more than 30 countries in what will be her longest-ever stint on the road. (AP Photo/Ariel Schalit)

  • TEL AVIV, ISRAEL - MAY 31: Madonna performs on stage during her "MDNA" tour at Ramat Gan Stadium on May 31, 2012 in Tel Aviv, Israel. (Photo by Kevin Mazur/WireImage)

  • US pop icon Madonna (C) performs on stag

    US pop icon Madonna (C) performs on stage during her first MDNA world tour concert in the Ramat Gan Stadium, near Tel Aviv, on May 31, 2012. Madonna's Tel Aviv concert sold 32,000 tickets and it is the first in her world tour spanning 30 countries and 86 concert dates to promote her new MDNA album. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/GettyImages)

  • TEL AVIV, ISRAEL - MAY 31: Madonna performs on stage during her "MDNA" tour at Ramat Gan Stadium on May 31, 2012 in Tel Aviv, Israel. (Photo by Kevin Mazur/WireImage)

  • Madonna

    U.S pop icon Madonna performs at the Ramat Gan stadium near Tel Aviv, Israel, Thursday, May 31, 2012. Pop music star Madonna is kicking off her new world tour in front of tens of thousands of ecstatic fans in Israel. (AP Photo/Ariel Schalit)

  • US pop icon Madonna performs on stage du

    US pop icon Madonna performs on stage during her first MDNA world tour concert in the Ramat Gan Stadium, near Tel Aviv, on May 31, 2012. Madonna's Tel Aviv concert sold 32,000 tickets and it is the first in her world tour spanning 30 countries and 86 concert dates to promote her new MDNA album. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/GettyImages)

  • Madonna

    U.S pop icon Madonna performs at the Ramat Gan stadium near Tel Aviv, Israel,Thursday, May 31, 2012. Pop music star Madonna is kicking off her new world tour in front of tens of thousands of ecstatic fans in Israel. (AP Photo/Ariel Schalit)

  • US pop icon Madonna (C) performs on stag

    US pop icon Madonna (C) performs on stage during her first MDNA world tour concert in the Ramat Gan Stadium, near Tel Aviv, on May 31, 2012. Madonna's Tel Aviv concert sold 32,000 tickets and it is the first in her world tour spanning 30 countries and 86 concert dates to promote her new MDNA album. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/GettyImages)

  • US pop icon Madonna (C) performs on stag

    US pop icon Madonna (C) performs on stage during her first MDNA world tour concert in the Ramat Gan Stadium, near Tel Aviv, on May 31, 2012. Madonna's Tel Aviv concert sold 32,000 tickets and it is the first in her world tour spanning 30 countries and 86 concert dates to promote her new MDNA album. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/GettyImages)

  • US pop icon Madonna performs on stage du

    US pop icon Madonna performs on stage during her first MDNA world tour concert in the Ramat Gan Stadium, near Tel Aviv, on May 31, 2012. Madonna's Tel Aviv concert sold 32,000 tickets and it is the first in her world tour spanning 30 countries and 86 concert dates to promote her new MDNA album. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/GettyImages)

  • Madonna "MDNA" World Tour Opener

    TEL AVIV, ISRAEL - MAY 31: Madonna performs during the opening concert of her 'MDNA' World Tour at Ramat Gan stadium on May 31, 2012 in Tel Aviv, Israel. (Photo by Ilia Yefimovich/Getty Images)

  • Madonna "MDNA" World Tour Opener

    TEL AVIV, ISRAEL - MAY 31: Madonna performs during the opening concert of her 'MDNA' World Tour at Ramat Gan stadium on May 31, 2012 in Tel Aviv, Israel. (Photo by Ilia Yefimovich/Getty Images)

  • Madonna

  • Madonna

    U.S pop icon Madonna performs at the Ramat Gan stadium near Tel Aviv, Israel,Thursday, May 31, 2012. Pop music star Madonna is kicking off her new world tour in front of tens of thousands of ecstatic fans in Israel. (AP Photo/Ariel Schalit)

  • Madonna

    U.S pop icon Madonna at the Ramat Gan stadium nearTel Aviv, Israel, Thursday, May 31, 2012. Madonna launch her hotly-anticipated MDNA world tour with a show in Tel Aviv, kicking off a road trip of more than 30 countries in what will be her longest-ever stint on the road. Pop music star Madonna is kicking off her new world tour in front of tens of thousands of ecstatic fans in Israel. (AP Photo/Ariel Schalit)

  • Madonna

    U.S pop icon Madonna at the Ramat Gan stadium near Tel Aviv, Israel, Thursday, May 31, 2012. Madonna launch her hotly-anticipated MDNA world tour with a show in Tel Aviv, kicking off a roadtrip of more than 30 countries in what will be her longest-ever stint on the road. (AP Photo/Ariel Schalit)

  • Israelis dance during a party in a club of Tel Aviv to celebrate the arrival of Madonna in Israel, early Saturday, May 26, 2012. The Madonna 2012 World Tour will start on May 29 in Tel Aviv. (AP Photo/Dan Balilty)

  • US pop icon Madonna performs on stage du

    US pop icon Madonna performs on stage during her first MDNA world tour concert in the Ramat Gan Stadium, near Tel Aviv, on May 31, 2012. Madonna's Tel Aviv concert sold 32,000 tickets and it is the first in her world tour spanning 30 countries and 86 concert dates to promote her new MDNA album. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/GettyImages)

  • US pop icon Madonna performs on stage du

    US pop icon Madonna performs on stage during her first MDNA world tour concert in the Ramat Gan Stadium, near Tel Aviv, on May 31, 2012. Madonna's Tel Aviv concert sold 32,000 tickets and it is the first in her world tour spanning 30 countries and 86 concert dates to promote her new MDNA album. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/GettyImages)

  • Madonna "MDNA" World Tour Opener

    TEL AVIV, ISRAEL - MAY 31: Madonna performs during the opening concert of her 'MDNA' World Tour at Ramat Gan stadium on May 31, 2012 in Tel Aviv, Israel. (Photo by Ilia Yefimovich/Getty Images)

  • TEL AVIV, ISRAEL - MAY 31: Rocco Ritchie and Madonna perform on stage during her 'MDNA' tour at Ramat Gan Stadium on May 31, 2012 in Tel Aviv, Israel. (Photo by Kevin Mazur/WireImage)

  • TEL AVIV, ISRAEL - MAY 31: Rocco Ritchie and Madonna perform on stage during her 'MDNA' tour at Ramat Gan Stadium on May 31, 2012 in Tel Aviv, Israel. (Photo by Kevin Mazur/WireImage)

  • TEL AVIV, ISRAEL - MAY 31: Rocco Ritchie and Madonna perform on stage during her 'MDNA' tour at Ramat Gan Stadium on May 31, 2012 in Tel Aviv, Israel. (Photo by Kevin Mazur/WireImage)