 many highway and tunnel construction projects are underway or have recently been completed. Major projects include rehabilitation of the Dushanbe – Chanak (Uzbek border), Dushanbe – Kulma (Chinese border), and Kurgan-Tube – Nizhny Pyanj (Afghan border) highways, and construction of tunnels under the mountain passes of Anzob, Shakhristan, Shar-Shar and Chormazak. These were supported by international donor countries.