Seattle fire officials said a late Sunday fire damaged four Tesla Cybertrucks.

(CNN) - A stage barricade collapsed at the Bumbershoot music festival in Seattle on Saturday night sending four people to the hospital, according to the Seattle Fire Department. First responders received an "aid call" at Seattle Center around 10 p.m., Seattle Fire Department Public Information Officer David Cuerpo told reporters. Music artist Jai Wolf was performing on the Fischer Stage when a barricade collapsed on festivalgoers, the fire department said. Twenty-five people on the scene were evaluated, and four people were taken to the Harborview Medical Center in stable condition, the fire department added. Bumbershoot Music & Arts Festival has been held at Seattle Center every Labor Day weekend since 1971, according to the fesitval's website.