At least one person died after a huge tent collapsed Saturday, injuring dozens of revellers and forcing the cancellation of Slovakia's largest musical festival, a report said.

Organisers abandoned the Pohoda music festival in the western town of Trencin, featuring Patti Smith, Basement Jaxx and Scotland's Travis, and evacuated all 33,000 festival-goers after the tent collapsed.

Interior Minister Robert Kalinak said a "young boy" was killed when a gust of wind lifted then brought down the tent on hundreds of people sheltering from a heavy downpour, the SITA news agency said.

Thirty-eight people were taken to hospital, 15 of them with serious injuries, the report said. Three of the injured required surgery, a doctor told the agency.

One report, from the television station TA3, said as many as three people could have died in the accident.