MINNEAPOLIS -- The Minneapolis police chief has issued a video message to potential protesters in advance of an upcoming decision on whether two officers will be charged in the November death of a black man.

Twenty-four-year-old Jamar Clark was shot by police Nov. 15 during what authorities called a struggle. But some who say they saw the shooting have said that Clark wasn't struggling and was handcuffed. Clark died a day later.

His shooting prompted protests, including an 18-day encampment outside a police precinct.

A prosecutor has said he hopes to announce a charging decision by month's end.

In her message on the department's website, Harteau says police have helped residents exercise their First Amendment rights, but public safety is the top priority. She says acts of violence won't be tolerated.