 During the same time, another Arab army from Iraq, under Salman ibn Rabi'a, conquered Caucasian Albania (Arran).Although the Arab sources imply that the country was hence effectively under Arab rule, modern historians generally consider the contemporary account of the Armenian bishop Sebeos (which is partly corroborated by the Byzantine chronicler Theophanes the Confessor) to be more reliable, and have proposed different reconstructions of the early Arab raids between 640 and 650, based on a critical reading of the sources; it is clear, however, that the country did not submit to Arab rule at this time.The Armenian histories report that the Arabs first arrived in 642, penetrating up to the central region of Ayrarat, and sacked Dvin, returning with over 35,000 captives.