A scandal-hit NHS mental health trust is facing an unlimited fine for failing to care for a suicidal teenager, despite him being considered high risk.

Jamie Osborne killed himself on the hospital wing of Lewes prison, run by Sussex Partnership NHS Foundation Trust, in February 2016.

The 19-year-old had already attempted suicide after being arrested and remanded in custody in 2015.

But staff working for the mental healthcare trust failed to properly monitor and treat him, a court heard.

He died three months later.

The trust will be sentenced at Brighton Magistrates' Court on Friday after admitting failing to provide care and treatment for patients in a safe manner, in a prosecution brought by the Care Quality Commission (CQC) under health and social care laws.

The court heard Mr Osborne was moved to the hospital wing of the prison after trying to kill himself in his cell on the general wing in November 2015.

He was found dead on February 12, 2016.

Bena Brown, prosecuting on behalf of the health watchdog, previously told the court that despite being observed as "grossly psychotic" and that he "remained a high risk of suicide", there was "clear confusion by the staff" over his care.

The Worthing-based organisation has previously come under fire for several deaths linked to its care.

In 2016, the trust, which the court heard has an estimated annual income of £1 million, was criticised in a review of nine killings carried out by patients as well as another who died in its care.

A review found the trust did not always learn from its mistakes and sometimes "severely underestimated" risks.

This included the case of Donald Lock, who was stabbed 39 times by patient Matthew Daley after they were involved in a car crash in 2015.