Saw an oval shaped craft emerged in fire.

The sky was dark with scarce clouds. I was in the car with my family. While stopped at a red light, we seen a dark oval figure flying slowly. The craft was covered in what appeared to be flames. The flames were so bright, they illuminated the clouds. The craft suddenly stopped moving, and the flames ceased, leaving the craft almost invisible. As it proceeded to move, the flames started again. Out of shock, I was not able to record or take a picture. After about 30 seconds, the craft stopped moving, however the flames were not gone. The flames were dimmed, but the craft blended in with the normal stars in the sky.