Analysis of information sources in references of the Wikipedia article "사카어" in Korean language version.
[T]hese western Saka he distinguishes from eastern Saka who moved south through the Kashgar-Tashkurgan-Gilgit-Swat route to the plains of the sub-continent of India. This would account for the existence of the ancient Khotanese-Saka speakers, documents of whom have been found in western Sinkiang, and the modern Wakhi language of Wakhan in Afghanistan, another modern branch of descendants of Saka speakers parallel to the Ossetes in the west.
