A little boy is in the back of an SUV. He's wearing a colourful shirt with cartoon dinosaurs. As he sits there, staring at the camera, the two adults in the front lie lifeless. Both, according to police in Ohio, frozen from a drug overdose.

The haunting image was shared on the city of East Liverpool's Facebook page on Thursday. The unconscious woman in the passenger seat was Rhonda Pasek, said police, and the boy is her four-year-old grandson. Photo shared as a warning "We feel it necessary to show the other side of this horrible drug. We feel we need to be a voice for the children caught up in this horrible mess," said the city in the Facebook post. "This child can't speak for himself but we are hopeful his story can convince another user to think twice about injecting this poison while having a child in their custody."