Six Dallas police officers have been disciplined in connection with the beating of a black man earlier this month.
Footage from a dashboard camera shows two officers beating Andrew Collins on Sept. 5 after officers tried to pull him over for allegedly riding his motorcycle on a sidewalk. Sources who have seen the video said it shows officers repeatedly punching and hitting Collins with a baton after a short chase.
A criminal investigation is now being conducted by the department's Public Integrity Unit based on in-car video that shows the officers used an impact weapon and apparently their fists in making the arrest.
Dallas Police Chief David Brown said he expects to release the tape to the public on Thursday and said that he doesn't believe that his officers were racially motiviated.
"There are no racial slurs on audio," Brown was quoted as saying in the Dallas Morning News. "There's no indications from statements by officers that there was any racial overtones or racial motivations. One can only speculate about the racial component."
Dallas Mayor Pro Tem Dwaine Caraway said he hasn't seen the footage but believes, from what he's heard, that it is likely to ignite racial tensions in the city.
"It's embarrassing to me to know that these things are still taking place and that this incident did take place," Caraway said. "We will encourage folks to be understanding. This is a situation that's unexpected, unwarranted and one that we do not condone."
The department said officers Paul Bauer and Kevin Randolph were placed on administrative leave last Wednesday and that officer Henry Walter Duetsch was placed on leave on Saturday, pending the outcome of the investigation. Three other officers, Jeremy James Francis, Robert James Kamphouse and Daniel Stephen Malouf, have been placed on restricted duty while the investigation is under way.
All six of the officers are fairly new to the force, joining the department in 2009.
The FBI has been called in to investigate possible civil rights violations.
According to jail records, Collins was released from jail on a $100,000 bond. He was charged with three traffic warrants, evading arrest, resisting arrest, and possession of marijuana after his arrest. He could not be reached for comment Monday at the work or home addresses listed on his booking sheet.
NBCDFW's Frank Heinz contributed to this report.