Wed Jul 27, 2016 05:33PM
A protester was arrested on Tuesday outside Governor Mark Dayton’s mansion in St. Paul, Minnesota.
A protester was arrested on Tuesday outside Governor Mark Dayton’s mansion in St. Paul, Minnesota.

Police in the US state of Minnesota have arrested dozens of protesters participating in a rally over the killing of an African-American man by a police officer earlier this month.

Nearly 50 protesters were arrested on Tuesday in St. Paul outside the Minnesota governor's mansion amid a weeks-long protest over the fatal shooting of 32-year-old Philando Castile on July 6.

"The people were arrested after being told to disperse and stop blocking the sidewalk," the St. Paul Police Department said in a statement.

Demonstrators have been protesting outside Governor Mark Dayton's residence since Castile’s shooting death. The bloody encounter was posted live on the internet by his girlfriend and sparked widespread anger.

Castile's killing occurred a day after the fatal shooting of 37-year-old Alton Sterling in Baton Rouge, Louisiana. He was killed during a violent altercation with two white police officers.

A graphic video of that incident also caused an outcry across the country.

Over the past month, thousands of demonstrators flooded the streets of major cities across the country to decry the deaths of Sterling and Castile.

Blacks, Hispanics and Native Americans are more likely to get arrested by police compared to white and Asian people in the United States, new research finds.

"Blacks, Native Americans and Hispanics had higher stop/arrest rates per 10,000 population than white non-Hispanics and Asians," said Ted Miller of the Pacific Institute for Research and Evaluation in Maryland, who led the study.

"US police killed or injured an estimated 55,400 people in 2012," Miller and his colleagues wrote in the journal Injury Prevention.

"On an average day, three people die and 150 people are treated at a hospital because they are injured by police," Miller told NBC News.