Fatal Queensland house fire inquiry hears father was 'pretty abusive'

Exterior shot of Brisbane Magistrates Court signage

The inquest in Brisbane is probing the fatal fire. (ABC News: Luke Bowden)

In short:

An inquiry into what caused a 2017 house fire that killed one young boy and badly injured his brother has heard from the children's mother.

The woman broke down while giving evidence about her "on and off" relationship with their father.

What's next?

The inquest is scheduled to run until February 18.