A man has a meal beside statues at an outdoor restaurant in Wuhan, central China's Hubei Province, April 5, 2020. (Xinhua/Shen Bohan)

There is no scientific evidence to support Washington's repeated allegations that the novel coronavirus emanated from a research lab or a wet market in the Chinese city of Wuhan.

BEIJING, May 10  -- Officials and scholars around the world have recently stressed there is no scientific evidence to support Washington's repeated allegations that the novel coronavirus emanated from a research lab or a wet market in the Chinese city of Wuhan.

U.S. Secretary of State Mike Pompeo on Sunday agitated for "significant evidence" on the virus' origin from Wuhan. However, he did not specify what the evidence is nor deliver any concrete proof to validate his claims.

The origin of the novel coronavirus behind the COVID-19 pandemic remains unclear, according to Army General Mark Milley, U.S. chairman of the Joint Chiefs of Staff.

"Did it come out of the virology lab in Wuhan, did it occur in the wet market there in Wuhan or did it occur somewhere else? And the answer to that is we don't know," Milley told a press conference earlier this week.