A Michigan woman has been arrested on charges related to the alleged abuse and confinement of her disabled sister-in-law, according to local authorities.

The woman is accused of keeping her sister-in-law locked in a basement for approximately two years while allegedly denying her adequate food and care. Police reports indicate the victim was found in a severely malnourished state.

The alleged abuse came to light when authorities responded to the residence, though details about what prompted the initial investigation have not been disclosed. The victim was reportedly discovered in conditions that suggested prolonged neglect and confinement.

The disabled woman was taken to medical facilities for treatment of what authorities described as life-threatening malnutrition and other health complications related to the alleged abuse.

The suspect has been taken into custody and faces charges related to abuse of a vulnerable adult. The investigation remains ongoing as authorities work to determine the full extent of the alleged mistreatment.