WASHINGTON (CNN) — Ben Carson will tour Ferguson, Missouri, on Friday, the city that has been the site of frequent protests since unarmed teenager Michael Brown was killed by police last summer.

Carson, the only black candidate in the 2016 presidential election, has been critical of Black Lives Matter protesters, who have said they want to bring attention to police brutality against people of color.

The retired neurosurgeon previously wrote in an op-ed for USA Today that the Black Lives Matter movement is directing its anger at “the wrong targets.”

“The idea that disrupting and protesting Bernie Sanders speeches will change what is wrong in America is lunacy. The ‘BlackLivesMatter’ movement is focused on the wrong targets, to the detriment of blacks who would like to see real change,” Carson wrote.

The vehicle tour is not open to the press, according to his campaign, but he will be available to the media after the tour.

The campaign on Wednesday declined to say why Carson chose to tour Ferguson.