In pics: frozen Hukou Waterfall on Yellow River

Photo taken on Jan. 16, 2019 shows the frozen Hukou Waterfall on the Yellow River in Hukou Town of Jixian County in Linfen City, north China's Shanxi Province. More than 70 kilometers of the Yellow River's Hukou section were covered with ice due to lasting low temperatures. (Xinhua/Lyv Guiming)