Image copyright Nazanin Zaghari-Ratcliffe A British-Iranian mother has been jailed for five years in Iran on "secret charges", her husband says.
Richard Ratcliffe said charity worker Nazanin Zaghari-Ratcliffe, who was arrested in April, had called him from prison and said: "I can't bear to be in this place any longer."
She also said she missed her two-year-old daughter Gabriella "all the time".
Gabriella's passport was taken after her mother's arrest. The child is staying with her grandparents in Iran.
Mrs Zaghari-Ratcliffe, who works for the Thomson Reuters Foundation, was arrested at Tehran airport after visiting her family on holiday.
The UK Foreign Office said it was "deeply concerned" about the reports of her sentence and ministers would continue to raise the case with Iranian officials.
'Hostile network'
Mr Ratcliffe, from north London, said his wife had phoned just before 09:00 BST on Friday to tell him she had been given a five-year sentence.
She told him: "It has been horrendous. I do not want to wake up each morning and remember where I am. I want to stay in my dreams."
She added: "I have been here so long. Do you understand what it is like to be a mother kept away from her child this long?
"I have missed over a fifth of her life. What does that do to her?"
The family say there has never been clear information about what Mrs Zaghari-Ratcliffe is accused of, but Iranian officials have previously accused her of leading a "foreign-linked hostile network".
Mr Ratcliffe said he had asked his wife during the phone call what the charges against her were.
He said she had asked a guard who was standing next to her by the phone and the guard had said: "National security charges."
Image copyright Nazanin Zaghari-RatcliffeMrs Zaghari-Ratcliffe and her lawyer were in court to hear the sentence passed down, but Mr Ratcliffe said it was not clear whether she had been told what she was charged with.
He told the BBC it was possible that she knew but had been forbidden from telling her family.
"It remains extraordinary that Nazanin's interrogators clarify the sentence but not the crime - because there is none," he said.
The case was "shrouded in shadows and internal politics", he added.
'Bargaining chip'
He also noted the timing, saying the court's decision - on 6 September - came a day after the UK had appointed an ambassador to Iran for the first time since 2011.
"Nazanin's detention and charges have always felt like she and Gabriella are being held as a political bargaining chip for internal and international politics," Mr Ratcliffe said.
"The fact that she was sentenced with unrecognisable charges the day after the UK embassy was upgraded makes this all the clearer."
Mrs Zaghari-Ratcliffe is expected to serve her sentence in Evin Prison, where she is currently being held in a high-security wing controlled by the Revolutionary Guard.
Mr Ratcliffe said he had told his wife she was "much loved".
"I have thousands of messages for her to read one day. They keep me going now," he said.
"They will be so important for her journey back once this cruelty is over.
"I told her we so look forward to having her home."
Image copyright Nazanin Zaghari-RatcliffeMr Ratcliffe visited Downing Street in May as part of the campaign to free his wife, and last month Theresa May "raised concerns" over the case with Iran's president.
A Foreign Office spokeswoman said Mrs May and Foreign Secretary Boris Johnson would continue to raise the case "with their counterparts in Iran".
She said the government would also "continue to press the Iranians for consular access and for due process to be followed".