Narges Mohammadi, the 2023 Nobel Peace Prize laureate, was hospitalized Friday after a sharp deterioration in her health while serving time in an Iranian prison, according to her family and foundation.

The 54-year-old Iranian human rights activist collapsed in prison and was subsequently transferred to a local hospital for treatment. Her foundation described the incident as a "cardiac crisis."

Mohammadi's family reported that her condition has been declining since she suffered a heart attack in March. The activist has been imprisoned in Iran for her human rights work and advocacy efforts.

Mohammadi was awarded the Nobel Peace Prize in 2023 for her activism and efforts promoting human rights in Iran. She has been a prominent voice in Iran's civil rights movement and has faced repeated imprisonment for her advocacy work.

Calls are growing for proper medical care for the imprisoned laureate as concerns mount over her deteriorating health condition. Her hospitalization highlights ongoing tensions between Iranian authorities and international human rights advocates.