UFO Sighting in South Roxana, Illinois on 2018-06-09 11:45:00 – I looked up and observed the object for approx 20 sec.Then grabbed my phone and began recording

The following exert is an eye witness statement. Please read into it what you will. This has been reported to mufon who I am sure are investigating:

I was inside my home and i heard thunder so
i went outside to tell the kids to get out of the swimming pool as i was about to walk back into the house i noticed an object in the sky
at first i thought that it was an airplane but it was moving to slowly and didn’t really look like one,after observing it for about 20 seconds it seemed to start as a single small ballthen several other smaller objects seemed to be coming to the object changing the shape of the object i went into the house and grabbed my phone and went outside again to try to get some video and pictures of it because it was at least unusual.
i quit recording before it disappeared behind some low clouds because some kids didn’t want to get out of the pool