A backup dancer collapsed on stage during a concert performance Thursday by Iggy Azalea in Brazil. Azalea called for medical personnel to come on stage, then continued to perform briefly before the concert suddenly stopped.

The incident was captured on a number of videos recorded by attendees and posted online — you can watch one of the clips below.

“The scary scene unfolded Thursday during Iggy’s performance at Maracanã Stadium in Rio de Janeiro. You see a backup dancer collapse onstage and her body shaking uncontrollably,” TMZ reports. “Iggy calls for a medic, then starts singing ‘Black Widow’ before the music stops and an eerie silence falls over the stadium.”

The report says medics drove an ambulance onstage to take the woman away, after with the concert got rolling again.

“It sounds like the backup dancer will be okay,” TMZ adds. “Iggy addressed the incident on social media, saying the lights and heat in the venue triggered the seizure, and the woman’s feeling much better now. Iggy says she kept singing because she thought the dancer just fell down or twisted an ankle.”