Prince Harry's upcoming autobiography will reveal a physical altercation with his brother Prince William.
The altercation reportedly occurred over Meghan Markle, with William calling her "difficult," "rude," and "abrasive."
Harry sustained bruises and a back injury in the fight.
The excerpt has caused a stir on social media, with hashtags #MeghanMarkleisALiar and #ShutUpHarry trending.
Some Twitter users have accused Markle of manipulating Harry and playing the victim.
Others have criticized Harry for airing the royal family's dirty laundry.
The full autobiography, titled "Spare," will be released on January 10.
Harry and Markle announced their intention to step down as senior royals in 2020 and have since moved to Canada and California.
Some social media users have accused Markle of being attention-seeking and threatened by others' kindness.