Kim Kardashian is encouraging her fans and other celebrities to make their voices heard on Black Lives Matter.

“I want my children to grow up knowing that their lives matter,” the reality star wrote in an open letter titled “#BlackLivesMatter.”

It addressed the killing of two black men, Alton Sterling and Philando Castile, by police officers this week.

“I do not ever want to have to teach my son to be scared of the police, or tell him that he has to watch his back because the people we are told to trust—the people who ‘protect and serve’ may not be protecting and serving him because of the color of his skin.”

Although the message does not explicitly refer to the killing of five police officers in Dallas on Thursday night, Kanye West‘s wife called for people to use their words rather that violence to make a difference.

“The last thing we need is to fuel anger with more hate or violence, especially toward the many incredible police officers who risk their lives every single day to protect our families and communities,” the 35-year-old wrote. “We must peacefully use the power of our voices and the strength of our numbers to demand changes in the judicial system so that brutality doesn’t ever go unpunished.”

Kim Kardashian has joined the slew of celebrities who are calling for change after five officers were shot dead in Dallas during a protest over the deaths of two black men

In addition to listing the name of several black men and women killed by police over the last decade, Kardashian also linked to GoFundMe pages set up to help the families of both Sterling and Castile.