The Army says it has launched an informal investigation into allegations that an Alaska-based unit was allowing racial slurs among its members.

Army Alaska spokesman Lt. Col. Alan Brown says he can't discuss specifics of the case or what unit is involved.

The Army Times reported Thursday that the unit being investigated is a battalion with the 25th Infantry Division's 1st Stryker Brigade Combat Team based at Fort Wainwright.

The Army Times said the soldiers were allowed to use racial slurs during "Racial Thursdays."

Brown says the Army was already aware of the allegations and that an informal complaint was "made through command channels."

Brown says an informal commander's inquiry is underway. He says that if warranted by the findings, a formal investigation could be initiated after that.