Prince William fears his brother's journey to say everything from personal life to public life could become an even bigger problem than it has been so far, according to a report.
According to Page Six, many members of the royal family are anxious about what Prince Harry might say on his next appearance.
"He can go very far with his truth bombs," a source told the Mail.
Harry and his wife, Meghan Markle have shocked the royal family since their March interview with Oprah Winfrey, during which they talked about racism and claimed they received no support as Markle struggled to adjust to life in the monarchy.
Harry followed Oprah's conversation with more claims about his father, Prince Charles, saying the future king made him "suffer" as a child.
"My dad used to say to me when I was younger, 'Well, it was like that for me, so it will be the same for you,'" the 36-year-old prince told Oprah Winfrey.
William is not simply disappointed, but "very concerned" about Harry's recent public statements, according to the source, who said he had "more concerns than fears" about other charges that might come.