Ellie Kennedy, an Individuals at Risk Campaigner at Amnesty International UK, said: “It should obviously never have come to this.
“The Iranian authorities are entirely responsible for pushing these two unfairly-detained people to take such desperate measures.
“It’s shocking and unforgivable that the Iranian authorities can callously force prisoners of conscience into starving themselves in protest at their plight, and they should immediately provide full medical care to Nazanin and Narges.
“We’d also like to see the UK Government strongly insisting on the provision of immediate medical care for both of them.
“Narges is a distinguished Iranian human rights defender who should never have been jailed, and likewise Nazanin is simply a charity worker who should be back with her family in the UK not languishing in Evin Prison.
“It’s time for the Iranian authorities to finally accept the obvious: these two women need to be freed as soon as possible, a first step in trying to address Iran’s appalling human rights record.”