The fire was reported just before 7:30 p.m. Sunday in the 400 block of Jasper Street in a playground known as Green Acres Park.
It took more than half an hour to put the fire out.
A witness tells Action News the playground was recently rebuilt by a local church.
The families who visited the park want to know who would torch it.
"It feels really bad to me because I loved this park, I did everything in it," said Brandon Spearman.
This was also the main playground for students at nearby Sacred Heart School. Principal Janet Williams says Sunday's act of arson is yet another step back for this community.
"If it was someone in the neighborhood who did this they're taking from themselves, and that's what's really sad," she said.
Residents are hoping the city will make it a priority to rebuild what was already a $100,000 playground. No one was injured.
The fire marhsal's office continues to investigate.
