Victory seemed at first to incline to the Persians; Comentiolus was defeated and fled; but Horaclius restored the battle, and ended by defeating the whole Persian army, and driving it from the field, with the loss of its commander, who was slain in the thick of the fight.

The next day the Persian camp was taken, and a rich booty fell into the hands of the conquerors, besides a number of standards.

The remnant of the defeated army found a refuge within the walls of Nisibis.
Later in the year Comentiolus recovered to some extent his tarnished laurels by the siege and capture of Arbas, whose strong situation in the immediate vicinity of Martyropolis rendered the position of the Persian garrison in that city insecure, if not absolutely untenable.
Such was the condition of affairs in the western provinces of the Persian Empire, when a sudden danger arose in the east, which had strange and most important consequences.

According to the Oriental writers, Hormisdas had from a just monarch gradually become a tyrant; under the plea of protecting the poor had grievously oppressed the rich; through jealousy or fear had put to death no fewer than thirteen thousand of the upper classes, and had thus completely alienated all the more powerful part of the nation.

Aware of his unpopularity, the surrounding tribes and peoples commenced a series of aggressions, plundered the frontier provinces, defeated the detachments sent against them under commanders who were disaffected, and everywhere brought the empire into the greatest danger.