Revelation 9:1-2

Riverside(i) 1 THE fifth angel sounded his trumpet and I saw a star that had fallen from heaven to the earth. There was given to him the key of the pit of the abyss. 2 And he opened the pit of the abyss and smoke came up from the pit like the smoke of a great furnace, and the sun was darkened and the air also by the smoke of the pit.