A video tweeted by the department at 5:30pm local time shows protestors marching peacefully down the street, chanting, “Raise your hands, don’t shoot.”

Two unidentified shooters opened fire around 8:45pm local time.

Earlier in the day, US president Barack Obama had delivered a short speech on the deaths of Sterling and Castile, and urging unity.

“All Americans should recognize the anger, frustration, and grief that so many Americans are feeling—feelings that are being expressed in peaceful protests and vigils,” he said.

“Rather than fall into a predictable pattern of division and political posturing, let’s reflect on what we can do better.  Let’s come together as a nation, and keep faith with one another, in order to ensure a future where all of our children know that their lives matter.”

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