It is essentially one town with Kara-Suu in Kyrgyzstan, but is separated from the latter by a Soviet-era border which today is tightly controlled by Uzbekistan. Korasuv was the second town in Uzbekistan to be sealed off during the Andijan massacre in spring 2005, when some 6,000 people fled across the border. A border town, it is an important market town, especially for cottonseed oil trading.