Aerial photo taken on Nov. 7, 2017 shows the scenery of city area in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Jiang Wenyao)

Aerial photo taken on Nov. 7, 2017 shows the scenery of old city area in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Hu Huhu)

Aerial photo taken on Nov. 7, 2017 shows the scenery of the old city the economic and technological development zone in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Hu Huhu)

Aerial photo taken on Nov. 7, 2017 shows the scenery of old city area in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Hu Huhu)

Aerial photo taken on Oct. 22, 2017 shows the scenery of city area in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Jiang Wenyao)

Aerial photo taken on Nov. 7, 2017 shows the scenery of the economic and technological development zone in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Hu Huhu)

Aerial photo taken on Nov. 7, 2017 shows the night view of Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Jiang Wenyao)

Aerial photo taken on Nov. 8, 2017 shows a view of Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Hu Huhu)

Aerial photo taken on Nov. 7, 2017 shows the night view of the Donghu Park in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Xing Guangli)

Aerial photo taken on Nov. 7, 2017 shows the scenery of old city area in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Shen Bohan)

Aerial photo taken on Nov. 8, 2017 shows the scenery of old city area in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Xing Guangli)

Aerial photo taken on Nov. 7, 2017 shows the night view of the Donghu Park in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Jiang Wenyao)

Aerial photo taken on Nov. 7, 2017 shows the night view of the Donghu Park in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Shen Bohan)

Aerial photo taken on Oct. 22, 2017 shows the scenery of old city area in Kashgar, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Jiang Wenyao)