Waco ISD Police Chief Ken Boatman resigned Friday following accusations he created an inappropriate work environment -- allegations he denied.

The specific allegations have never been made clear by Waco ISD, which confirmed his departure.

In January, Waco ISD received two anonymous complaints about Boatman's interactions with another employee in his department. But, the human resources department was unable to substantiate the accusations.

However, Waco ISD said while HR was investigating the initial complaints, employees raised other concerns about Boatman's leadership and the work environment in his department -- causing the district to place him on paid administrative leave on Jan. 19. After news of his administrative leave broke, more people complained about his leadership.

This week, Boatman was given a summary of the complaints against him and the opportunity to respond, according to the district. Boatman denied the accusations but resigned anyway, Waco ISD said.

“As our actions in this case demonstrate, we take our employees’ concerns seriously and are committed to providing a great work environment,” Waco ISD Executive Director of Communications Kyle DeBeer said. “While we determined that the initial anonymous allegations were unsubstantiated, when additional concerns emerged, we moved quickly to investigate them and to notify Chief Boatman of those allegations. After denying the allegations, Chief Boatman chose to resign.”

Boatman had been with the Waco ISD Police Department since December 1999. He was promoted to police chief in October 2011.

Lt. David Williams was named acting chief after Boatman was placed on leave. He will continue to serve in that role. Williams has 15 years of experience in law enforcement including eight years during two stints with the Waco ISD Police Department, DeBeer said.

Waco ISD has an electronic system that allows individuals to report concerns anonymously.