Doctors declared a 20-year-old woman dead this week after she collapsed Monday after attending the Electric Daisy Carnival music festival in Las Vegas, according to multiple reports.

Kenani Kaimuloa suffered a seizure while waiting for a shuttle bus with friends on Monday morning, her father, Dane Kaimuloa, told the Las Vegas Review-Journal. Her friends called 911 but paramedics were delayed by heavy traffic and couldn't reach the woman for 10 minutes.

In that time her heart stopped, the Review-Journal reported.

"Iraq was a cakewalk compared to this," Dane Kaimuloa, an Iraq War veteran, told KTNV. "I'm just tore up. Who would ever think something like this would ever happen to their kid?"

Doctors told Dane Kaimuloa his daughter died of heatstroke, dehydration and exhaustion, according to the Review-Journal. The Clark County Coroner's Office is tasked with confirming the cause and manner of her death.

According to the National Weather Service, temperatures in Las Vegas were record-breaking over the weekend and topped 100 degrees. Forecasters issued an excessive heat warning Monday, when temperatures climbed to 115 degrees.

"It was really hot on the road, 120 on the road, "Dane Kaimuloa told KTNV. "The whole drive I was thinking 'Wow, my daughter is in this weather.' What was she really going through?"

Family friend Jerod Murphy described Kenani Kaimuloa as a "beautiful, sweet, talented young lady," on a GoFundMe page set up to help the family.

"I never once saw her without a smile," he wrote.