The 911 call came in from a 10-year-old girl, who said her mommy was on the ground.

When police and first-responders in Johnstown, Pa., arrived at the house, they found the 40-year-old mother lying on the floor.

Meanwhile, her four children, ranging from 2 to 10, were only partially clothed and living in "deplorable conditions" amid garbage and used needles, WJAC-TV reports.

Police tell WJAC they also found several thousand empty stamp bags of heroin in the home.

Now that mother, Misty Petrick of Johnstown, is facing drug and child endangerment charges after allegedly overdosing on heroin in front of her young children last month.

And this is not her first brush with the law.

According to WJAC, Petrick was sentenced to two years in prison and 15 months of probation after pleading guilty to involuntary manslaughter and DUI in the 2013 crash that killed her husband.

Petrick posted bond on the new charges. However, her children were placed in the custody of Children and Youth Services workers, pending a hearing.