U.S. Congress 'seriously concerned' about Hong Kong activist Joshua Wong - Pelosi

FILE PHOTO: U.S. House Speaker Nancy Pelosi holds weekly news conference at the U.S. Capitol in Washington

WASHINGTON (Reuters) - The U.S. Congress "remains seriously concerned" about the alleged mistreatment of Hong Kong pro-democracy leader Joshua Wong in prison and is "disturbed" by possible further charges and jail time for such activists, U.S. House Speaker Nancy Pelosi said on Wednesday.

"China's brutal sentencing of these young champions of democracy in Hong Kong is appalling," Pelosi said in a statement after Wong was jailed. "We call on all freedom-loving people around the world to join us in denouncing this unjust sentencing and China's widespread assault on Hong Kongers."

(Reporting by Susan Heavey)