Update, 3:30 p.m. Sunday, July 10, 2016

DeRay Mckesson, a prominent Black Lives Matter activist who was arrested on one count of simple obstruction of a highway, was released from the East Baton Rouge jail around 3:30 p.m. Sunday.

Moments after his release, Mckesson said he continues to be disappointed with the Baton Rouge Police Department.

Update, 10:30 a.m. Sunday, July 10, 2016

Deray Mckesson, a prominent Black Lives Matter activist, was arrested and charged with simple obstruction of a highway of commerce during an Alton Sterling protest in Baton Rouge Saturday, according to an arrest affidavit.

According to the affidavit, Mckesson entered Airline Highway during the protest and was told to exit the lanes of travel. He allegedly entered the roadway again and was taken into custody without incident, the affidavit said.

Deray Mckesson Affidavit of Probable Cause by AdvocateOnline on Scribd

Brittany Packnett, an activist who rose to national prominence after the killing of Michael Brown in Ferguson, Missouri, in 2014, was with Mckesson at the time of his arrest.

Packnett issued this statement Sunday morning:

“Deray was arrested last night while we protested for Alton Sterling in Baton Rouge. police directions were to stay on the shoulder as we walked back toward BRPD along Airline Highway.

An officer approached him saying, "you with the loud shoes-if you step back into the street you'll be arrested."

Deray remained with other protestors in our group on the shoulder, not crossing the line into the street-a fact proven by several periscope videos, including his.

Just a few moments later, multiple police crossed onto the shoulder, tackling Deray and arresting him.

He was not in the street, just as several other protestors who witnesses identified as being arrested on the grass when snatched and grabbed by Baton Rouge PD.

To our knowledge, there were over 100 protestors arrested including a teenager trying to pick up his phone and a journalist.

We have been on the ground for the last 48 hours with courageous local protestors. During this time, the Police have continually been the aggressors in peaceful protest. They intentionally provoked peaceful people, pushing them from lawful spaces with riot shields and pointing guns in faces. Youth organizers and members of the Baton Rouge community have been peaceful, organized and determined.

Those who would like to support protestors, please consider donating to the bail fund (crowdrise.com/baton-rouge-ba…) and call Baton Rouge PD to ensure humane treatment and immediate release of all protestors.”

Original story:

DeRay Mckesson, the Black Lives Matter activist turned Baltimore mayoral candidate, was arrested at an Alton Sterling protest in Baton Rouge on Saturday, according to Cpl L'Jean McKneely, BRPD spokesman.

It wasn't immediately clear what count McKesson was booked on.

According to video posted on social media, Mckesson was filming live video of the protest and walking alongside Airline Highway when he was arrested.

Information from the Associated Press was used in this report.