Revelation 9:16-18

The number of the armies of the horsemen was two hundred million; I heard the number of them. And this is how I saw in the vision the horses and those who sat on them: the riders had breastplates the color of fire and of hyacinth and of brimstone; and the heads of the horses are like the heads of lions; and out of their mouths proceed fire and smoke and brimstone. A third of mankind was killed by these three plagues, by the fire and the smoke and the brimstone which proceeded out of their mouths.