Maine’s largest police union filed a complaint with the state labor relations board against Gov. Janet Mills on Friday, alleging that her administration violated state bargaining laws.

The Maine Fraternal Order of Police is accusing the Mills administration of bad-faith bargaining during negotiations for two-year contracts that expired on June 30, according to a news release.

The union alleges that, during the current round of executive branch negotiations, the administration declared a premature impasse and canceled bargaining sessions “to frustrate the collective bargaining process.”

“We ask that the State treat its employees and their representatives with decency and dignity,” the police union said in a statement. “We ask to be treated as an equal partner at the bargaining table and in the end, we just want the State to value its employees and to sit down with us and work towards a fair agreement.”

Michael Eades, the executive director of the FOP, said Friday in an email that his organization was told that there are some clerical issues with its filing but that it would be resubmitted sometime next week. A copy of the original complaint was not immediately available Friday.

Sharon Huntley, director of communications for the Department of Administrative and Financial Services, said in an emailed statement Friday afternoon that the state was surprised by the FOP’s filing and is working in good faith to reach an agreement, with negotiations having taken place as recently as Wednesday.

“The State felt that good progress was made at negotiations and will continue to negotiate and defend itself against these unfortunate claims,” Huntley wrote.

The allegations come nearly two weeks after Maine’s largest labor union representing state employees, the Maine Service Employees Association, filed a similar complaint against the administration.

The Maine Fraternal Order of Police is representing members of the Maine State Law Enforcement Supervisors — which is made up of leaders and midlevel police managers in all law enforcement departments within the Maine state government, according to the news release.

That includes people who work for the Maine State Police and the fire marshal’s office; the Maine Warden Service; the Maine Marine Patrol; the Maine Capitol Police; the Department of Secretary of State; the Maine Forest Service; and Baxter State Park.