(Vancouver, WA) -- The City of Vancouver is offering a 10-thousand dollar reward for information on whomever set fire to a playground yesterday and destroyed it. Police say it happened about 1:30 Sunday night at Oakbrook Park. Nobody was hurt, but the playground set is a total loss. Damage is estimated at 100-thousand dollars. Vancouver officials say they plan to rebuild the playground, which they say is a popular spot with local families.