I was driving on Hwy 84 with my daughter and saw a triangle shaped object it all happened so quickly but I know it had lights on it and it also looked like blue flames comming out the back it was heading toward the Columbia River and then disappeared.There was another car on the highway who I tracked down in town and asked him if he saw what we saw and he said yes it was a firework but fireworks dont come down from the sky they shoot up((NUFORC Note: Witness elects to remain totally anonymous; provides no contact information. PD))