(CNN) - The U.S. Justice Department's civil rights division will be the lead agency investigating the shooting of Alton Sterling in Baton Rouge, Louisiana, Gov. John Bel Edwards told reporters Wednesday.
The U.S. attorney's office, the FBI and state police also will be involved, he said.
Edwards said he has "very serious concerns" after having watched a cell phone video of the shooting.
"The video is disturbing to say the least," he said.
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He said officials agreed there should be an independent investigation."There should be no doubt in anybody's mind that this incident is going to be investigated impartially and thoroughly," the governor said.Edwards said he expressed his condolences Wednesday to Sterling's family, speaking on the phone with his aunt.
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