CHICAGO (CBS) — Chicago police have arrested a man they say repeatedly struck an officer in the head during violence downtown Saturday.

Jeremey Johnson, 25, of Lakeview, has been charged with felony aggravated battery to a peace officer after police say he repeatedly struck an officer with a skateboard during a protest that turned violent.

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The officer was wearing a protective helmet and sustained only minor injuries, according to a tweet by the Chicago Police Department. He was treated at a local hospital.

Police also announced two women have been charged with separate felonies in connection with the protest.

Nicoline Arlet, 24, of Pilsen, was charged with a felony count of theft. Police said Arlet ripped a body camera off a Chicago Police officer during the protest.

Elena Chamorro, 18, of Lakeview, was charged with one felony count of aggravated battery to a peace officer and one misdemeanor count of mob action. Chamorro was arrested at 7:03 p.m. Saturday in the 0-99 block of East Randolph Street after police said she battered a uniformed deputy chief of police during the protest.

Late Sunday, police announced felony charges against a fourth defendant, Shaundric Mann, 24, of south suburban Burnham. Police said he was arrested around 7:16 p.m. Saturday during the protest in the 100 block of South LaSalle Street.

Police said Mann broke through a line of police officers after an officer ordered him to stay back. Police said he hit a uniformed officer in the face with a bullhorn in an attempt to defeat arrest.

Police said another officer suffered a wrist injury while taking Mann into custody. He was charged with two felony counts of resisting and obstructing a peace officer and one misdemeanor count of disorderly conduct.

Activists had been calling for Mann’s release earlier Sunday.