At least 20 hospitalized, hundreds treated for heat-related illness at Vans Warped Tour concert in Nashville

At least 200 people have been treated for heat-related illnesses at the Vans Warped Tour concert at the Nashville Fairgrounds on Tuesday.

According to the Nashville Fire Department, 22 victims were taken by fire crews and Vanderbilt University Medical Center paramedics.

"The highest AccuWeather RealFeel temp was 101 F at 11 a.m. before it stated to rain, with a heat index of 94 F," AccuWeather Meteorologist Randy Adkins said.

However, Adkins said that temperature is common in the summer for Nashville.

"I think this is one of those cases that shows the superiority of the RealFeel temperature over the heat index. The heat index doesn't factor in sunshine or winds, and those things matter when you're outdoors," Adkins said.

Officials have set up 16 water tents with free ice and water for those attending the concert.

The all-day music event started at 11 a.m., but according to authorities, many concert-goers were leaving the concerts by late afternoon.

The Vans Warped Tour featured rock, pop, alternative and acoustic artists.

See more about the concert: