NASHUA - A Hudson woman is under arrest, accused of possessing narcotic pain killers belonging to someone else.

Linda Murphy, 43, of 8 Gordon St., Apt. 8, was arrested early Friday afternoon on the class B felony charge. Later, police upgraded the offense to a class A felony because Murphy was previously convicted of a misdemeanor drug offense, according to a police news release. A class A felony is punishable by up to 15 years in prison.

The investigation began Aug. 30, 2012, when police took a report of someone fraudulently obtaining a prescription pain medication from a local pharmacy two days earlier.

Nashua Police Lt. Michael Moushegian said Murphy used deception to obtain the medicine, which was prescribed for an acquaintance of hers.

What's next: Murphy is being held on $60,000 cash/surety bail pending arraignment Monday in 9th Circuit Court, Nashua District Division.