Sentence over deaths of pregnant Queensland woman and her partner to be appealed

Attorney general Shannon Fentiman signs notice of appeal to be lodged on Thursday afternoon

A Queensland teenager who killed a pregnant woman and her partner is facing an appeal against their sentence on the grounds it was manifestly inadequate.

The families of victims Matthew Field, 37, and Kate Leadbetter, 31, had described the 10-year jail sentence handed to the 18-year-old as grossly inadequate".