Team Roc, the philanthropic arm of Jay-Z's Roc Nation, has taken out full-page ads in multiple newspapers across the U.S. in support of protesters.

The letter is dedicated to George Floyd, who was killed at the hands of the Minneapolis Police Department, and includes a passage from a speech Martin Luther King Jr. gave in Selma in 1965. Publication of the letter marks a partnership with multiple families who've lost children to police brutality, as well as activists and attorneys.