LONDON, Ont. -- A 41-year-old man from London, Ont., is charged with second-degree murder now that the woman with whom he was in a long-term relationship has died.

City police originally charged the man with aggravated assault after they arrested him at a local motel on May 12.

Police were called to the motel after receiving reports of a disturbance in one of the rooms.

They found 39-year-old Maryhelen Johnston at the scene with serious injuries.

She was rushed to hospital, but died several days later.

Police have said Johnston and the accused were in a long-term relationship, but did not provide further details.