Updated

The Latest on the death in prison of a woman convicted of killing her husband by pushing him out of their high-rise Tulsa apartment (all times local):

3:35 p.m.

A 25-year-old woman serving 25 years in prison for killing her husband by pushing him from the 25th floor of their apartment hanged herself in prison.

The Oklahoma Department of Corrections said Tuesday that the state medical examiner has determined Amber Hilberling committed suicide.

Corrections spokeswoman Terri Watkins says Hilberling was found by another inmate about 5:20 p.m. Monday hanging from a bunk bed in the medium security housing unit at Mabel Bassett Correctional Center in McLoud. She was pronounced dead at 5:33 p.m.

Prosecutors say Hilberling shoved her husband — Joshua Hilberling — through the window in 2011 after they'd argued over splitting up. Amber Hilberling, who was 19 at the time and seven months pregnant, argued that the death was an accident caused by "unusually thin" windows in the couple's apartment.

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Oklahoma prison officials say a 25-year-old woman convicted of second-degree murder for pushing her husband to his death from the 25th floor of their apartment has died in prison.

Oklahoma Department of Corrections spokeswoman Terri Watkins says Amber Hilberling was pronounced dead at 5:33 p.m. Monday at the Mabel Bassett Correctional Center, where Hilberling had been serving a 25-year prison sentence for the 2011 death of her husband, Joshua Hilberling.

Watkins says the state medical examiner's office will determine Amber Hilberling's cause of death.

Prosecutors alleged that Amber Hilberling shoved her husband through the window after they'd argued over splitting up. Hilberling, who was 19 at the time and seven months pregnant, argued that the death was an accident caused by "unusually thin" windows in the couple's apartment.