A woman protesting the shooting death of Alton Sterling is detained by law enforcement in Baton Rouge, Louisiana, on July 9, 2016. Reuters/Jonathan Bachman

Protesters and police clashed during demonstrations over police violence against African Americans.

Protests against police killings of black men led to road closures, clashes with police, and hundreds of arrests in cities across the United States on Saturday night.

About 100 demonstrators were arrested each in Baton Rouge, Louisiana, and St. Paul, Minnesota, NBC News reported Sunday, the sites of two fatal shootings last week that have sparked widespread protests and renewed debate over racial disparities in American law-enforcement practices. DeRay McKesson, a prominent activist in the Black Lives Matter movement who ran unsuccessfully for mayor of Baltimore this year, was among those arrested in Baton Rouge.

It was the third straight day of widespread demonstrations after police shootings that occurred within a day of each other, and which were captured on video that was widely circulated online. On Tuesday, Alton Sterling, 37, was killed by police in Baton Rouge, where he was selling CDs in the parking lot of a food mart. Bystanders filmed his death on their cellphones. Sterling allegedly had a gun in his pocket, but it was not visible when an officer shot him. On Wednesday, Philando Castile, 32, was killed by police in Falcon Heights, a suburb of St. Paul, Minnesota, during a traffic stop for a broken taillight. Castile’s partner, Diamond Reynolds, streamed the aftermath of the shooting on her cellphone using Facebook. In the video, Reynolds said the officer shot Castile after Castile said he was carrying a gun and had a permit.

On Thursday, the first night of nationwide protests, a gunman opened fire on police officers at a demonstration in Dallas, killing five officers and wounding seven others. The gunman, identified as Micah Johnson, a 25-year-old Army veteran who served in Afghanistan, was killed by a remote-controlled robot bomb after an hours-long standoff with police. Officials said Johnson said he was upset by the shooting deaths in Louisiana and Minnesota and “wanted to kill white people, especially white officers.”

Protests took place Saturday night in New York, Philadelphia, Chicago, Nashville, and other cities. Dozens were arrested in New York and Chicago, CNN reported Sunday. In Baton Rouge, demonstrators chanted and carried signs that read “I can’t keep calm I have a black son” and “am I next?” In St. Paul, dozens of people marched along Interstate 94, a major highway, shutting it down to vehicle traffic. Some protesters threw rocks, bottles, and other objects at police, injuring at least three officers, Reuters reported Sunday. Photos from the scene show police officers using pepper spray against demonstrators. Around midnight, police deployed smoke bombs in an attempt to clear the demonstrators blocking the highway.

This post originally appeared in The Atlantic.

About the Author

Most Popular

  1. Life

    Who’s Really Buying Property in San Francisco?

    A lot of software developers, according to an unprecedented new analysis.

  2. A large crowd packs Independence Mall, with Philadelphia buildings in the background.
    Environment

    What Happened to Earth Day?

    In the beginning, it was a policy-shaking event that awakened a new generation of activists. But now even environmentalists have misgivings about it.

  3. A toddler breathes from a nebulizer while sitting in a crib.
    Environment

    How Scientists Discovered What Dirty Air Does to Kids’ Health

    The landmark Children’s Health Study tracked thousands of children in California over many years—and transformed our understanding of air pollution’s harms.

  4. A map of Baltimore and its surrounding leafy suburbs.
    Environment

    Every Tree in the City, Mapped

    Researchers at Descartes Labs are using artificial intelligence to make a better map of the urban tree canopy.

  5. Maria Romano stands behind one of her three children, Jennifer, 10, as she gets something to eat in their Harlem apartment in New York Thursday, June 3, 2005
    Equity

    Why HUD Wants to Restrict Assistance for Immigrants

    A proposal by Ben Carson’s agency would eject immigrant families from public housing to make way for the "most vulnerable." Housing advocates aren't buying it.