Brandy Kay Jaynes (pictured), the mother of a 12-year-old boy found dangerously malnourished and locked in a filthy bathroom, has been charged with child abuse

The mother of a 12-year-old boy found dangerously malnourished and locked in a filthy bathroom has been charged with child abuse.

Utah woman Brandy Kay Jaynes, 36, was arrested on a second-degree felony charge of aggravated, intentional child abuse early Monday morning.

The boy had allegedly been kept in a filthy bathroom at his home in the small southeastern Utah city of Toquerville near the state line with Arizona.

Court documents state the boy was rushed to the Dixie Regional Medical Center by his father, who found his son locked up at Jaynes' home and covered by a blanket, according to The Spectrum.

He weighed just 30 pounds, which is considered by the Centers for Disease Control to be the average weight for a two-year-old, and was unable to stand on his own.

Investigators also believe the boy was likely kept in the dark.

When officers later searched the home, they found three-square-feet of duct tape mounted on the light switch so it could not be turned on.

A police statement went on to describe how the bathroom was covered in feces, and that the toilet bowl was: 'full to the point that you could not see any water'.

They also found latches on the door so it could be locked from the outside.

It has since been revealed two of his siblings said their brother had been locked in the filthy bathroom for at least one year.

Pictured is the house where the boy was found in a filthy locked bathroom over the weekend

The boy had allegedly been kept in a filthy bathroom at his home (pictured) in the small southeastern Utah city of Toquerville near the state line with Arizona

Washington County Sheriff's Office Lt. David Crouse said Tuesday the children said they hadn't even spoken to their brother through the door in six months.

Crouse then said a doctor who treated the boy described this as the worst case of malnourishment he had ever seen.

'It would be my definition of a torture room,' he said.

'There was fecal matter and urine on the floor, there was open cans of food, like can of beans with a spoon in it; there was also a video camera that was capable of wifi monitoring.'

Court documents state the boy was rushed to the Dixie Regional Medical Center (pictured) by his father, who found his son locked up at Jaynes' home and covered by a blanket

The Lieutenant also explained how a baby monitor had been set up so that people outside the room could speak to the boy and tell him what to do, however he could not contact anyone outside.

The boy is expected to remain in hospital for several weeks to recover.