LANCASTER, Pa. (AP) — Police say a Lancaster County woman used a decorative spear to stab her roommate as the two argued about wasting electricity.

The altercation happened at an apartment in East Lampeter Township on Monday. Police say 32-year-old Nicole Marie Wagner used the spear to stab her 31-year-old female roommate and threatened to kill her.

Township police Lt. Robin Weaver says the victim was stabbed in the back and hand and was treated at the hospital.

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Police say Wagner had accused her of wasting electricity by not turning off lights.

Wagner was being held on $50,000 bail in Lancaster County Prison. She faces charges of aggravated assault and terroristic threats. It wasn’t immediately clear if she had an attorney.

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