Some said it was smoke from a chimney, others said they saw the glint of sunlight reflected from the windscreen of a fast-moving vehicle.

• 这一传言也引起更多的争论，有人说那是个冒烟的烟囱，有人说他们看到的的确是一辆快速移动的汽车的挡风玻璃反射的阳光一闪。