Assyrian army being so far away from home to invade Babylonia. With the aid of surviving Chaldean troops, Hallutash-Inshushinak took the city of Sippar, where he also managed to capture Ashur-nadin-shumi and take him back to Elam. Ashur-nadin-shumi was then never heard from again, probably having been executed. In Ashur-nadin-shumi's place, a native Babylonian, Nergal-ushezib, became Babylon's king. Babylonian records ascribe Nergal-ushezib's rise to power to being appointed by Hallutash-Inshushinak, whereas Assyrian records state that he was chosen by the Babylonians themselves. The Assyrian army, by now surrounded by the Elamites in southern Babylonia, managed to kill the son of Hallutash-Inshushinak in a skirmish but remained trapped for at least nine months. Wishing to consolidate his position as king, Nergal-ushezib took advantage of the situation and captured and plundered the city of Nippur. Some months later, the Assyrians attacked and captured the southern city of Uruk. Nergal-ushezib was frightened by this development and called on the Elamites for aid. Just seven days after taking Uruk, the Assyrians and Babylonians met in battle at Nippur, where the Assyrians won a decisive victory; routing the Elamite-Babylonian army and capturing Nergal-ushezib, finally free from their entrapped position in the south. Through some unknown means, Sennacherib had managed to slip by the Babylonian and Elamite forces undetected some months prior and was not present at the final battle, instead probably being on his way from Assyria with additional troops. Once he rejoined his southern army, the war with Babylonia was already won. Soon thereafter, a revolt broke out in Elam which saw the deposition of Hallutash-Inshushinak and the rise of Kutur-Nahhunte to the throne. Determined to end the threat of Elam, Sennacherib retook the city of Der, occupied by Elam during the previous conflict, and advanced into northern Elam. Kutur-Nahhunte could not organize an efficient defense against the Assyrians and refused to fight them, instead fleeing to the mountain city of Haidalu. Shortly thereafter, the severe weather forced Sennacherib to retreat and return home. Destruction of Babylon Despite the defeat of Nergal-ushezib and the flight of the Elamites, Babylonia did not surrender to Sennacherib. The rebel Shuzubu, hunted by Sennacherib in his 700 BC invasion of the south, had resurfaced under the name Mushezib-Marduk and, seemingly without foreign support, acceded to the throne of Babylon. As he was king by 692 BC, but not described in Assyrian sources as "revolting" until 691 BC, it