"We try to respond anywhere, so I mean it was the quickest response of all times," said Julia Pedrosa, an American Red Cross Disaster program specialist.
Pedrosa and her team, which usually responds to house fires, were gearing up when she encountered the students who were awestruck by the fire.
"We decided it was better for the kids, safer to have them inside the building so we brought them, we gave them water, we gave them coloring books and crayons and we were just hanging out with the kids until the authorities came over," Pedrosa said.
When firefighters arrived the flames had melted much of the front of the bus.
The damage is similar to when another First Student bus caught fire earlier this year on May 14 near Emmanuel Cleaver II Boulevard and Elmwood Avenue.
In that fire, two children escaped unharmed due to the quick thinking of their bus driver.
"Well, I think it's important to note that school buses are the most regulated vehicles on the road. There's nothing more important than the safety of the students we transport, and we take that responsibility very seriously," Biddinger said.
"It's not something we see every day, but we're just glad that we were here to help and that kids are safe," Pedrosa said.
The preliminary investigation points to a mechanical failure as the cause of the fire.