The issue focused on a series of incidents involving officers at the agency's Phoenix station.

In July, an employee was shot in the neck and a second was shot in the leg. The incidents were linked to an investigation by the FBI into the shootings of three men in 2013.

The Phoenix Police Department released the following statement Tuesday:

"It is with deep regret that we must announce that one of our officers has been fatally fatally shot by a member of the Phoenix Police Department.

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