Many flock to day 2 of Free Press Summer Festival at NRG Park

HOUSTON (KTRK) -- Houston Free Press Festival attendees are braving the heat for round two Sunday.

Houston Firefighters say they are continuing to treat victims of heat related illnesses. Festival organizers set up tents with fans that blow out cool mist. Three Metro buses are also on site as cooling stations.

Some attendees say they've seen multiple people pass out from the heat.

"We don't know what happens half the time. Yesterday I remember a girl was talking and she kind of tripped, and was like, 'Oh, I'm fine," Chloe Whitewater said, "She got up and fell again and didn't know what happened. So scary."