The early morning blaze remains under investigation, Everett police spokesman Aaron Snell said.
The fire was reported just after midnight at the Garfield Park playground at 2300 Walnut Street.
No one was hurt.
The fire destroyed two plastic slides. Damage was estimated at $10,000 and the play area remains closed.
No arrests have been made. Police detained and identified a number of young people who were at the park when the fire was started.
"We will be working the leads that we have," Snell said.
More Local News Headlines
Six seek three contested seats on Everett City Council 3 honored with Family Values Awards Ronning challenging Rankin in Darrington mayoral race Faith Calendar Arlington man to be extradited in Minn. sex-abuse case Possible norovirus outbreak at Colby living facility Former sergeant admits he helped launder prostitution money Shirley Gilbertson loved her temp job so much, she stayed on for free
Our new comment system is not supported in IE 7. Please upgrade your browser here.