The mother of a 13-year-old boy who was found naked and chained in their Alabama home was indicted on Monday on a charge of aggravated child abuse.

Dannielle Nicole Martin, 32, of Prattville, Alabama, had the charges against her upgraded from torture/willful abuse of a child, The Montgomery Advertiser reported.

Joshua David Martin, 26, the boy's stepfather, and Vickie Seale Higginbotham, 58, the boy's grandmother, were also indicted.

Danielle Nicole Martin, the mother of the victim, was charged with aggravated child abuse

On the left, Vickie Seale Higginbotham, the grandmother of the boy, was was also indicted on a charge of aggravated child abuse, as was the boy's stepfather, Joshua Daniel Martin, on the right

Two of the victim's uncles are also accused of aiding and abetting the abuse.

The boy was discovered on September 20, 2018, after deputies responded to an anonymous call of possible child abuse, Autauga County Sheriff Joe Sedinger told news outlets at the time.

The child had padlocks around his ankles, which were attached to a door, preventing any normal movement.

Officials estimated that the boy had been chained up for several hours.

Sedinger called the case 'disturbing.'

Speaking at a press conference in September, Autauga County Sheriff Joe Sedingerat said: 'We've never had anything like this in Autauga County'.

The family home in Prattville, Alabama, where the boy was found naked and chained to a door

'I mean, we've never had anything like this in Autauga County,' he told the local press.

'We've had child abuse cases, physical abuse cases that were bad. But nothing like this where a child was left chained up for an extended period of time.'

However, Sedinger said the victim did not seem withdrawn despite his experience, describing the teen as fun-loving and sweet.

Investigators at the time believed the child had been restrained as a punishment.

The victim and his siblings, aged 3 and 12, were all removed from the home last year.