WUHAN, Jan. 28 (Xinhua) -- Chinese Premier Li Keqiang, also a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee and head of a leading group of the CPC Central Committee on the prevention and control of the novel coronavirus outbreak, talks with front-line medical workers at Wuhan Jinyintan Hospital in Wuhan, central Chinas Hubei Province, Jan. 27, 2020. Entrusted by Xi Jinping, general secretary of the Communist Party of China (CPC) Central Committee, Premier Li Keqiang on Monday arrived in Wuhan to inspect and direct the efforts for the prevention and control of the novel coronavirus outbreak

GHAZNI (AFGHANISTAN), Jan. 28 (Xinhua) -- Photo taken on Jan. 27, 2020 shows the wreckage of the crashed plane in Deh Yak district of Ghazni province, Afghanistan. The Afghan Taliban claimed Monday that its fighters shot down a U.S. forces aircraft in eastern Ghazni province. The U.S. military said on Monday that it is monitoring the situation following reports of a U.S. aircraft crash in Afghanistan.

BRUSSELS, Jan .28 (Xinhua) -- European Commission President Ursula von der Leyen (L) meets with Olaf Scholz, Minister of Finance of Germany, at the EU headquarters in Brussels, Belgium, Jan. 27, 2020.

GHAZNI (AFGHANISTAN), Jan. 28 (Xinhua) -- A health worker gives polio vaccination dose to a child during a vaccination campaign in Ghazni province, Afghanistan, on Jan. 27, 2020. The Afghan Public Health Ministry launched a nationwide campaign on Monday to give polio vaccination dose to 9.1 million children under the age of five, the ministry said in a statement.

ARLINGTON (U.S.), Jan .28 (Xinhua) -- U.S. Secretary of Defense Mark Esper (L) and French Minister of the Armed Forces Florence Parly attend a press conference at the Pentagon in Arlington, Virginia, the United States, on Jan. 27, 2020.

NEW YORK, Jan.28 (Xinhua) -- Traders work at New York Stock Exchange in New York, the United States, on Jan. 27, 2020. U.S. stocks ended significantly lower on Monday. The Dow fell 1.57 percent to 28,535.80, the S&P 500 decreased 1.57 percent to 3,243.63, and the Nasdaq dropped 1.89 percent to 9,139.31.