Fans were treated for second-degree burns after attending Taylor Swift’s concert in Brazil

More details are emerging from Taylor Swift's show in Brazil where a fan died amid soaring temperatures.

The country is in the midst of an incredible heatwave and it caused chaos at the singer's concert last week at the Estádio Olímpico Nilton Santos in Rio.

Ana Clara Benevides Machado was only 23 years old and she reportedly fainted and suffered a cardiac arrest during the performance.

Paramedics attended to her at the scene, but sadly she passed away an hour after reaching the hospital.

Her cause of death has not yet been announced.

She wasn't the only one to be impacted by the extreme temperature inside the stadium.

Fans have taken to social media to express how they suffered second-degree burns as a result of the metal flooring.

One wrote: "I went to the Nilson Santos Stadium for the Taylor Swift concert and left with 3 second-degree burns.

"The metal plates that covered the floor of the premium track turned into a HOT PLATE at 40°C."

Another posted a photo of the burns on their legs and added that it was 'inhumane' inside the stadium.

"My friends and I were at the front and they let a lot of people pile up behind us pushing each other," the concert-goer said.

"When they opened the entrance, I was pushed and fell to the ground HOT.

"I got two second-degree burns that wouldn't stop burning in the sun."

They said they were 'crying in pain' as a result of the burns and went to the medical center twice for treatment.

The temperature was so bad that Swift ended up postponing the next performance.

She was understandably crushed when she found out about Machado's death.

The singer wrote on Instagram: "I can’t believe I’m writing these words but it is with shattered heart that I say we lost a fan earlier tonight before my show.

"I can’t even tell you how devastated I am by this.

"There’s very little information I have, other than the fact that she was so incredibly beautiful and far too young."

She added: "I'm not going to be able to speak about this from stage because I feel overwhelmed by grief when I even try to talk about it.

"I want to say now I feel this loss deeply and my broken heart goes out to her family and friends.

"This is the last thing I thought would happen when we decided to bring this tour to Brazil."