A child in Iran gazed at a candle flame as a London crowd prayed for the Iranian authorities to release Nazanin, held without charge since April 3

As two hundred people gathered near Downing Street to pray for Nazanin Zaghari-Ratcliffe to be released, a two-year-old girl closed her eyes to make a wish.

Gabriella has been living with her grandparents in Iran since her mother Nazanin was seized by security forces at Tehran’s main airport after visiting relatives.

Husband Richard Ratcliffe, 41, has been campaigning tirelessly for Nazanin’s release.

He led a candlelit vigil in London on Tuesday night to mark Laylat al-Qadr, a day in Ramadan when it is believed prayers are answered.

There is a tradition in Iran of releasing prisoners during Ramadan.

Mr Ratcliffe told the Ham&High: “When Nazanin comes out, she will see that we were there with her.”

Nazanin is no longer in solitary confinement but her case is being re-investigated by authorities in Iran.

Gabriella and her grandmother saw Nazanin last week, but Mr Ratcliffe has not been able to speak with her since May 30.