The Karasu (Arabic: قره صو) or Aswad (Arabic: الأسود) is a river in the provinces of Gaziantep and Hatay in Turkey.
For part of its length it forms the border with Aleppo Governorate in Syria.
[1] It joins the Afrin River at the site of the former Lake Amik.
Its waters now flow to the Orontes by a canal.
This article related to a river in Turkey is a stub.