I saw a huge triangle hovering above the Ashley river as I drove across the bridge toward west ashley. It flew slowly over the bridge and I almost drove under it as it passed over the bridge. For sure other drivers had to have seen it. A huge black triangle with white lights on each corner. It flew away low and slowly toward north charleston. By the time I crossed the bridge and pulled over, it was just a tiny dot, far away, flying low and went out of site from horizon but it looked like it was going toward the navy yard, park circle area. I called a friend in park circle to tell him to look outside for it and then a smaller triangle came across the river so I hung up and I filmed it on my phone. This one was smaller but looked the same. Both had the fire or afterburner whatever type thing on the back. It looked kinda like a stealth bomber flying really slow. Maybe this was a jet or a stealth bomber but the craft I saw first that made me pull over was much bigger, hovering and flying very slowly.