DOWNING Street has urged Iran to allow the family of a British-Iranian woman jailed in the country to visit her after she was transferred to a hospital mental health ward.

Nazanin Zaghari-Ratcliffe, 40, was arrested at Tehran’s Imam Khomeini airport while travelling with her young daughter in April 2016 and jailed for five years after being accused of spying, a charge she vehemently denies.

Her husband Richard Ratcliffe said she was transferred from Evin prison on Monday to the mental health ward of a hospital, in Tehran, where she is being held under the control of the Iranian Revolutionary Guard. Her father said he visited the hospital yesterday but was not allowed to see his daughter.

Theresa May’s official spokesman said: “We are extremely concerned about Nazanin’s welfare and call for her immediate release, and we urge Iran to allow family members to visit her and check on her care.”