Black triangular-shaped UFO in Gilberts, Illinois

On October 4, 2019, in the afternoon, a man took a photo of a black triangular-shaped UFO in Gilberts, in the state of Illinois, USA.

Witness report:

I just took the picture on my way home. it went up through the clouds at about 10,000 feet then came back and went away in the blink of an eye. i actually pulled my car over right by a busy intersection and jumped out of the car to try and get a picture. before i could zoom in it shot straight up into the clouds. thought maybe my eyes were playing tricks on me. then it came back down and i took the picture. then it shot up again and didn’t reappear.

Source, 04th October 2019