Relatives of jailed Iranian human rights campaigner Narges Mohammadi and the Nobel Peace Prize Committee have called for her to be transferred to adequate medical facilities following a sharp reported deterioration of her health.
On Friday her family said the 54-year-old had been taken from her prison in north-west Iran to a local hospital, calling the move a "last-minute" action that may come too late.
Her brother, who lives in Norway, told the BBC on Saturday: "Her blood pressure has dropped sharply, and they haven't been able to stabilise it."
Narges Mohammadi was awarded the 2023 Nobel Peace Prize. She was arrested in December for her criticism of the authorities.
Last month her brother Hamidreza Mohammadi said she had been found unconscious by fellow inmates at Zanjan Prison in north-west Iran, after suffering a suspected heart attack.
