DeRay Mckesson, a prominent activist in the Black Lives Matter movement, was arrested in Baton Rouge, La. while participating in protests.

Mckesson was livestreaming the protest on Periscope when he got arrested (go to 4:00 below). As he was handcuffed, multiple people can be heard on the livestream asking the police why he was being arrested. “He wasn’t doing anything,” says one protestor.

.@deray was live streaming on #Periscope when he got arrested. Go to 4:00 https://t.co/q5JeQbPafJ — Alex Medina (@mrmedina) July 10, 2016

Picture of @deray getting arrested. WHY are there so many officers on him?!? #FreeDeray pic.twitter.com/R43tYUi9Gj — Brittany Packnett☔️ (@MsPackyetti) July 10, 2016

Just got this text message from @deray, who has been arrested in Baton Rouge – says being held with 33 others pic.twitter.com/feLANYEdDs — Wesley Lowery (@WesleyLowery) July 10, 2016

#BLM protestor @deray arrested in Baton Rouge for peacefully protesting. (He’s fine and texting with friends and journalists.) — Mother Jones (@MotherJones) July 10, 2016

Well arresting @deray for seemingly no reason is just about the dumbest and most inflammatory thing the Baton Rogue police could do. — Clara Jeffery (@ClaraJeffery) July 10, 2016

Just got this text message from @deray, who has been arrested in Baton Rouge – says being held with 33 others pic.twitter.com/feLANYEdDs — Wesley Lowery (@WesleyLowery) July 10, 2016

Alton Sterling was killed by Baton Rouge police, one of two black men to be killed by police this week, in events that galvanized nationwide protests. The Advocate reported that roughly 500 people began protesting at the state capitol at about 8:00pm local time.

UPDATE Sunday 5:15 p.m. ET: Mckesson has been released, telling the media, “I am disappointed with the Baton Rouge police who provoked protestors who were peacefully protesting.” Watch below from ABC News:

Deray McKesson speaks after being released from jail: Baton Rouge PD “only people that were violent last night.”https://t.co/Vys63ZHFWj — ABC News (@ABC) July 10, 2016

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