A Parker Police Department sergeant resigned last Friday after he was placed on administrative leave, department officials said Thursday night.

In a Thursday statement, the department said that Troy Brienzo, 31, was placed on investigative leave on Jan. 7 after an “alleged incident.” He then resigned just over a month later.

Spokespeople for the department as well as the 23rd Judicial District Attorney’s Office declined to provide more information on the matter, including what the allegations are or who is investigating them, despite multiple requests by The Denver Gazette.

Officials with other agencies, including the Douglas County Sheriff’s Office, the El Paso County Sheriff’s Office, the Aurora Police Department, the Denver Police Department and the Colorado Bureau of Investigation all denied knowledge of the case and who was investigating it when asked Friday.

“I want to be clear: the allegations run counter to this department’s mission and values and tarnish the very badge we wear,” said Parker Police Chief Jim Tsurapas in the statement. “This matter is being taken seriously and is under active investigation. It will continue through the appropriate processes to ensure transparency, accountability and to maintain the community’s trust.”

It appears from Parker Police Department social media posts Brienzo has been with the department for at least nine years.