MINNEAPOLIS (WCCO) — Two city law enforcement leaders exchanged heated words on live radio Friday afternoon.

Minneapolis Police Chief Janée Harteau called into WCCO Radio Friday afternoon during a conversation with Lt. Bob Kroll, head of the Minneapolis Police Union, over recent protests by Black Lives Matter activists at the 4th Precinct.

READ MORE: Devon Glover Pleads Guilty To Federal Charges In 2 Armed Robberies

He was speaking to WCCO-TV’s Pat Kessler and WCCO Radio’s John Williams at around 3 p.m. Friday when Harteau called in.

Kroll has been critical of the city’s decision to allow protesters to occupy space on the grounds of the 4th precinct headquarters. Some protesters have sprayed graffiti and have thrown bricks and rocks at officers keeping the peace there.

READ MORE: Driver Hurt After Fiery Crash On I-94 In St. Paul

Before Harteau called in, Kroll said he was disappointed in Mayor Betsy Hodges’ handling of the situation, and said that a number of police officers have said they felt it was becoming her “Benghazi.”

Protesters have been camping outside the precinct for days, ever since police fatally shot 24-year-old Jamar Clark early Sunday morning after an struggle.

MORE NEWS: Next Weather: A Top 10 Weather Day To Kick Off Memorial Day Weekend

Earlier Friday, three protesters were removed from a Minneapolis City Council meeting. And a number of religious and political leaders have joined with Black Lives Matter and the NAACP at the 4th precinct demonstrations, including Rep. Keith Ellison.