While being a formal vassal of Egypt, he tried to expand his kingdom towards the Mediterranean coast and captured the city of Sumur (Simyrra).
This was seen with alarm by his neighbouring states, particularly Rib-Hadda, the king of Gubla, (Byblos), who pleaded for Egyptian troops to be sent for their protection.
Rib-Hadda had left his city of Byblos for four months to conclude a treaty with the king of Beirut, Ammunira, but when he returned home, he learned that a palace coup led by his brother Ilirabih had unseated him from power.
[4] Aziru was detained in Egypt for at least a year before being released when the advancing Hittites conquered the important city of Amki thereby threatening Amurru (EA 170).
[5] Hittite-Amurru text:[6] Amurru remained firmly in Hittite hands until the reign of the 19th Dynasty Pharaohs Seti I and Ramesses II.