Bright "white sparking" lights really high in night sky.

On the night of Thursday September 15th, while visiting family, at exactly 8:46 pm in Marysville, OH. My wife, father and mother in-law, and myself went outside to observe the Iternational Space Station flyover because the night was clear and moonless and its not something we can see every day. (Path of ISS S.W. to N.E. at 28°), just as the I.S.S was overhead us, all of the sudden, we noticed off in a North Westerly direction about 12 to 20 bright white/blue lights "flash" into existence and then "out" and then another set flashed in and out in different positions a few more times. Lasted approximately 16 seconds and seemed to have a higher altitude than the I.S.S. Also there was a large shadowy oval directly overhead that appeared to silently hover moments after the "sparking lights" stopped. I looked back to the I.S.S just as it disappeared behind the roofline of the house and the oval was gone!