Revelation:8:10-11
nkjv@Revelation:8:10 @ Then the third angel sounded: And a great star fell from heaven, burning like a torch, and it fell on a third of the rivers and on the springs of water.
nkjv@Revelation:8:11 @ The name of the star is Wormwood. A third of the waters became wormwood, and many men died from the water, because it was made bitter.