Crisis meetings involving senior royals have taken place following the Duke and Duchess of Sussex’s interview with Oprah Winfrey.
BBC royal correspondent Daniela Relph said it was “increasingly unsustainable for Buckingham Palace to say nothing” about Prince Harry and Meghan’s claims.
She said the Palace “will not want to feel rushed into saying something”.
Prince Harry and Meghan spoke about racism, mental health, the media and other royals in the interview.
Meghan – the first mixed-race member of the modern Royal Family – said a low point came when Harry was asked by an unnamed royal family member “how dark” their son Archie’s skin might be.
Prince Harry later clarified to Oprah that the comments were not made by either the Queen or the Duke of Edinburgh.
Meanwhile, US President Joe Biden’s spokeswoman said he would praise anyone for having the courage to speak out about mental health.