One killed in tent collapse at Slovak music festival
Trencin's hospital director Rudolf Lintner said 52 people were injured, including three with serious head-injuries.
"It was so sudden...there were people lying on the ground covered in blood, it was horrible," said Lucia Madarasova, 26.
Media reports said hundreds of people were in the marquee when it collapsed during the festival, attended by more than 30,000 people.
(Reporting by Martin Santa)