Revelation 9:1-3

Then the fifth angel sounded, and I saw a star from heaven which had fallen to the earth; and the key to the shaft of the abyss was given to him.

He opened the shaft of the abyss, and smoke ascended out of the shaft like the smoke of a great furnace; and the sun and the air were darkened from the smoke of the shaft.

Then out of the smoke came locusts upon the earth, and power was given them, as the scorpions of the earth have power.