BANGOR — Unionized nurses at the Eastern Maine Medical Center in Bangor say they’re going to go on strike for one day after rejecting the “last, best and final” contract offer from the hospital.

No date has been set for the strike.

The three-year-contract between the 850-nurses and the medical center expired at midnight Sept. 30.

Union president Judy Brown says the decision was made after two days of voting found that 86 percent of nurses rejected the medical center’s offer.

The Bangor Daily News says the key sticking points in the current round of contract talks were nurse-to-patient staffing ratios, health insurance and protection from layoffs and transfers,