Sacramento Fire Department arson investigators have determined that the playground fire was arson, said a department news release issued Wednesday.
The playground was a total loss following a suspicious blaze that began about 1 a.m. Monday. Arsonists destroyed the same South Natomas playground in June 2006.
After that blaze, hundreds of volunteers rebuilt Fort Natomas in a seven-day construction campaign.
On Monday, Sacramento Mayor Heather Fargo and City Councilman Ray Tretheway offered a $5,000 reward.
A community meeting is scheduled at 6:30 p.m. Thursday at the park picnic shelter, near Cloudview Drive and Roma Court, to find out what people want to do.
A Web site has been set up for persons who are willing to assist in the possible Fort Natomas rebuilding effort.
Anyone with information about the playground fire is asked to call the Sacramento Fire Department's arson tip line at (916) 808-8732.