The Armenian sources however provide a different narrative, both in chronology and in the details of the events, although the broad thrust of the Arab campaigns is consistent with the Muslim sources. The Armenian historians 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. In 643, the Arabs invaded again, from the direction of Adharbayjan, ravaged Ayrarat and reached Iberia, but were defeated in battle by the Armenian leader Theodore Rshtuni and forced back. After this success, Rshtuni was recognized as ruler of Armenia by the Byzantine emperor Constans II. At some point soon after, the Armenians recognized Byzantine suzerainty.