I was leaving So Roxana Il at approx 9pm on Fri Sept 16. I was heading west on Broadway Ave when to the sw (the direction of the city) I saw a line of fire begin to form in the sky. In my view it was approx 1 inch if I put my fingers in the air. I began to cut through the refinery tank farms Rd west toward rt 3. The line of fire which didn't descend began to look like it was dripping fire balls. My initial instinct was that it was flares. But I soon realized these points of light that looked as though they were on fire at first, moved away from this vertical line. As each one moved away the line got smaller until there was no line and 9 of these points of light. As they moved away they last their appearance of being on fire and we're just bright red points of light. The began forming perfect isosceles triangles. Each triangle began to rotate counter clockwise as well as on almost a gyro motion but keeping the perfect triangle formations. These rotated as they also seemed to drift towards the SW until I could no longer see them. I found this video as well as a second from the same channel on sat the 17. So far this is the only other mention of this sighting I've found. This was the craziest thing I've ever witnessed. It was a very clear sighting, no clouds or obstructions and the objects seemed only a couple miles away and around 10-20k feet. It felt closer than planes that fly overhead on the way to Lambert.