Jay-Z has quoted Dr Martin Luther King Jr in a series of full-page newspaper ads across the US, which the rapper has dedicated to the memory of George Floyd, the unarmed black man who died while in police custody in Minneapolis police last week.

Mr Floyd's death has ignited ongoing protests in the US and Jay-Z has become the latest voice from the entertainment industry to condemn police brutality against African Americans and the response of President Donald Trump, who has threatened to use military force against the largely peaceful protesters.

The full pages ads were run in The New York Times, The Chicago Tribune and The Philadelphia Enquirer, among others, and were signed by Jay-Z, the National Association of Criminal Defence Lawyers, Van Jones’ Reform Alliance and the Women’s Global Initiative.

The ad feature includes a well-known quote from Dr Martin Luther King Jr., from a 1965 address in Selma, Alabama, which was a focal point of Civil Rights marches.

It reads:

"A man dies when he refuses to stand up for that which is right. A man dies when he refuses to stand up for justice. A man dies when he refuses to take a stand for that which is true. So we’re going to stand up amid horses. We’re going to stand up right here, amid the billy-clubs. We’re going to stand up right here amid police dogs, if they have them. We’re going to stand up amid tear gas!"

Among the figures who have also signed the ad are the parents of Botham Jean, DJ Henry and Antwon Rose II - all of whom were unarmed black civilians killed by police officers.