A bipartisan group of U.S. lawmakers have asked Walt Disney Co. Chief Executive Officer Bob Chapek to explain the company’s contacts with "security and propaganda authorities” in the Xinjiang region of China during production of the live-action version of "Mulan.”

After it was learned that scenes from the $200 million film had been filmed in Xinjiang, where as many as 1 million Uighurs, most of whom are Muslims, have been forced into detention camps, a boycott campaign against the film intensified.

"Disney’s apparent cooperation with officials of the People’s Republic of China (PRC) who are most responsible for committing atrocities — or for covering up those crimes — is profoundly disturbing,” the representatives and senators wrote in a letter Friday.