Demonstrators mourned the loss of Alton Sterling, chanting 'Black lives matter' and 'Hands up don't shoot
Protests have grown in the US over the killing of Alton Sterling, a black man who was shot dead by white police in Louisiana, as an investigation into his death was announced.
Hundreds gathered in Baton Rouge on Wednesday night, a day after Sterling was wrestled to the ground by two officers and killed outside a shop as he sold CDs - an incident filmed with a mobile phone.
The rallies came as more mobile phone footage alleged to be of the incident emerged, and as the United States Justice Department said it would investigate the killing.
Many carried signs to express their anger and demand for justice, blocking streets near the shop where Sterling, a father of five, died.
Demonstrators chanted "black lives matter" and "hands up don't shoot".
Protesters and friends of Sterling had earlier erected a makeshift memorial on the white folding tables and fold-out chair he had used to sell mixtape CDs.
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Sandra Augustus, an aunt who helped to raise Sterling after his mother died, spoke to the crowds with a broken voice.
She said a second video that emerged on Wednesday showing the moments before her nephew was shot had left her angry.
She pleaded for protesters and those gathered not to allow the vigil to be marred by violence.
Shortly after speaking, Augustus and another aunt of Sterling's fainted in the heat and commotion. They were carried away by family members.
Louisiana Governor John Bel Edwards and the US Justice Department announced on Wednesday afternoon that there would be an investigation by the department's civil rights division.