(KPAX) Gov. Steve Bullock has filed a lawsuit against the postmaster general over what he calls "unlawful changes to mail delivery."

Bullock's lawsuit says Postmaster General Louis DeJoy's actions have harmed Montanans by impeding the flow of mail, including medical prescriptions, utility bills, and other essential communications.

The suit names recent changes to Postal Service policies such as eliminating overtime pay for certain workers and changing how election mail is classified and charged.

The suit also says that under DeJoy, the Postal Service has removed mail drop boxes and dismantled large sorting machines in Montana.

Gov. Bullock is asking that the court declare DeJoy’s policy changes unlawful as well as immediately require steps to undo the actions.