WASHINGTON, March 1 (Reuters) - The FBI has assessed that a leak from a laboratory in the central Chinese city of Wuhan likely caused the COVID pandemic, director Christopher Wray said on Tuesday, a claim China said had "no credibility whatsoever". "The FBI has for quite some time now assessed that the origins of the pandemic are most likely a potential lab incident in Wuhan," Wray told Fox News. His comments follow a Wall Street Journal report on Sunday that the U.S. Energy Department had assessed with low confidence the pandemic resulted from an unintended lab leak in China.