The body of missing Queensland mother Jana Armstrong has been found in remote bushland five days after she disappeared.

Her former partner, Dharminder Singh, has been arrested and charged with murder.

Jana Armstrong. 9News

Armstrong vanished from her Toowoomba home on Tuesday.

Her family has paid tribute to the disability worker and mother of a four-month-old boy.

“She was so caring and loved her son so much, more than anything. She put everyone before herself,” sister Faith said.

“She was just the best sister and an even better mum.”

A group of people out hunting on Saturday stumbled across a woman’s body in bushland on a rural property near Esk, about 80 kilometres north-east of Toowoomba, about 11pm.

Police believe it is Armstrong and say she was allegedly driven there in her own car before being thrown down the steep cliff.

Following the discovery, police arrested Singh, the father of Armstrong’s son.

He has been charged with murder, aggravated DV offence.

Police will allege Singh killed Armstrong on Tuesday night before dumping her body.

Her car was found early the next morning at the end of the street, in the middle of the road with the doors open. Singh was found at her house holding his son.

“It’s cruel, so cruel, and now he has no mum,” Faith said.

Tearful family and friends laid flowers at the scene.

The tragic discovery was made by people searching on Saturday. 9News

“It’s not the breakthrough we wanted at all. But it’s answers, it’s something,” a cousin said.

The community that helped with the search is now shattered.

“I’m gonna miss her so much. But I know she’s taking care of my daughter, and I’m taking care of her son, I’ll raise him, just the way she would have wanted me to,” Faith said.

If you or someone you know needs help call 1800 RESPECT on 1800 737 732.