A Butte woman is accused of hitting her partner in the back of the head with a drinking glass in Helena. 

Angel Diana Brown, 32, is being charged with felony assault with a weapon.

An officer was dispatched to the 100 block of North Last Chance Gulch to deal with a physical altercation early Sunday.

Witnesses had reported seeing Brown throw the glass, according to court documents. The officer also watched video of Brown throwing the glass, according to court documents.

The officer spoke with the woman's partner, who said he had been hit in the back of the head with a blunt object thrown by Brown and suffered a laceration to the back of his head.