A record number of First Nations people died in NSW prison custody last year. Advocates fear this year will be worse

Exclusive: Karlene Whitton says her son Matthew Roberts took his own life three months into his jail term. I keep picturing it every night'

• Warning: This article contains images and names of Indigenous Australians who have died

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First Nations advocates warn that prisons in New South Wales could exceed the record number of Indigenous deaths in custody set last year, after two men died this month.

Matthew Roberts, a 27-year-old Bundjalung, Yaegl and Gamilaroi man and father of two young boys, took his life inside Lithgow correctional centre on 7 July after he was remanded in custody in March. Another First Nations man, 21, died a week later at Clarence correctional centre.