Actress Nicole Kidman has written an open letter in which she spoke out against domestic violence after her award-winning portrayal of a woman who is abused in the TV show "Big Little Lies".

Kidman wrote the letter in the latest issue of Porter magazine, reports people.com.

"It never occurred to me that I should be at a disadvantage because I was born a girl. The idea that women and men are equal is part of my DNA. I was raised by a strong feminist mother and a fully supportive father," Kidman wrote.

"My feminist roots have also led me to the UN Women and my work as its Goodwill Ambassador. It is in this role that I come to fully understand the barriers that women around the world are facing.

"I have focused on lending my voice to women who are survivors of violence. The stories I have heard from them have shaken me to the core and changed me forever," added the actress, who won an Emmy Award last month.