Baton Rouge's top prosecutor is weighing whether to pursue charges against nearly 200 demonstrators arrested in weekend protests over the killings of young black men as criticism mounts by protesters over the tactics officers used on the crowds.

Police made nearly 200 arrests in Louisiana's capital city during weekend protests, which are growing across the country as people express outrage over deaths at the hands of police.

East Baton Rouge District Attorney Hillar C. Moore III says any decisions on charges against the protesters will be made on a case-by-case basis.

The American Civil Liberties Union of Louisiana said Monday that Baton Rouge police "used violent, militarized tactics on groups of people who have gathered peacefully in protest of Alton Sterling's killing."

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Associated Press reporter Janet McConnaughey contributed from New Orleans.