Parmenio found himself in difficulties about the time when the Persian king fled.

His messengers detained a part of the phalanx, which was about to engage in the pursuit, and even recalled Alexander, who was hastening upon the track of Darius.

The careful prince turned back, but before he could make his way through the crowd of fugitives to the side of his lieutenant, victory had declared in favor of the Macedonians in this part of the field also.

Mazseus and his troops, learning that the king was fled, regarded further resistance as useless, and quitted the field.

The Persian army hurriedly recrossed the Zab, pursued by the remorseless conquerors, who slew the unresisting fugitives till they were weary of slaughter.