Mbh 8.49.1g

And people heard noises as loud in the sky as on the surface of the Earth, in consequence of the sound of music and song proceeding from large bands of Apsaras on their celestial cars, with which those bands of heavenly choristers continually greeted the newly-arrived heroes slain in hundreds and thousands by brave enemies on Earth, and with which, placing them on celestial cars, they repaired on those vehicles (towards the region of Indra). Witnessing with their own eyes those wonderful sights, and actuated by the desire of going to heaven, heroes with cheerful hearts speedily slew one another. Car-warriors fought beautifully with car-warriors in that battle, and foot-soldiers with foot-soldiers, and elephants with elephants, and steeds with steeds. Indeed, when that battle, destructive of elephants and steeds and men, raged in this way, the field became covered with the dust raised by the troops. Then enemies slew enemies and friends slew friends. The combatants dragged one another by their locks, bit one another with their teeth, tore one another with their nails, and struck one another with clenched fists, and fought one another with bare arms in that fierce battle destructive of both life and sins. Indeed, as that battle, fraught with carnage of elephants and steeds and men, raged on so fiercely, a river of blood ran from the bodies of (slain) human beings and steeds and elephants. And that current carried away a large number of dead bodies of elephants and steeds and men. Indeed, in that vast host teeming with men, steeds, and elephants, that river formed by the blood of men and steeds and elephants and horsemen and elephant-men, became miry with flesh and exceedingly terrible. And on that current, inspiring the timid with terror, floated the bodies of men and steeds and elephants. Impelled by the desire of victory, some combatants forded it and some remained on the other side.