The punishment of hell will not be confined to the torments of fire alone

 "The punishment of hell will not be confined to the torments of fire alone; a dreadful door will be opened to your eyes, which if opened to this world its dread will destroy all of its inhabitants. A similar door will open to your flesh, another to your nose, each of which will be sufficient to kill the inhabitants of this world. One of the experts in the knowledge of the Hereafter says that in the same way as the heat of hell will reach the climax of its extremity, its coldness will also be at the highest point of coldness."

IMAM KHOMEINI (R)