The U.S. military says the company commander of an Army Reserve unit whose soldiers refused to deliver fuel along a dangerous route in Iraq has been relieved of her duties.

A statement issued Thursday says the commander of the 343rd Quartermaster Company requested the action and that she will be assigned to another position commensurate with her rank and experience.

It says the outgoing commander is not suspected of misconduct and the move has nothing to do with the guilt or innocence of anyone involved.

The military is investigating 18 soldiers for refusing the drive a fuel convoy from Tallil air base near Nasiriyah to Taji, north of Baghdad, citing safety concerns. Other soldiers from the same unit later carried out the mission.