Revelation 9:1-5

1The fifth angel sounded his trumpet, and I saw a star that had fallen from the sky to the earth. The star was given the key to the shaft of the Abyss. 2When he opened the Abyss, smoke rose from it like the smoke from a gigantic furnace. The sun and sky were darkened by the smoke from the Abyss. 3And out of the smoke locusts came down on the earth and were given power like that of scorpions of the earth. 4They were told not to harm the grass of the earth or any plant or tree, but only those people who did not have the seal of God on their foreheads. 5They were not allowed to kill them but only to torture them for five months. And the agony they suffered was like that of the sting of a scorpion when it strikes.