Freed British-Iranian engineer Anoosheh Ashoori is 'angry' at the UK government over 10-year detention

One of the British-Iranian detainees released by Tehran last week said he was "angry" that the UK government did not act sooner, and accused Prime Minister Boris Johnson of "opportunism".

Retired engineer Anoosheh Ashoori, 68, was arrested in August 2017 while visiting his elderly mother in Tehran and jailed for 10 years on charges of spying for Israel.

He and charity worker Nazanin Zaghari-Ratcliffe, who was detained for six years, arrived home last week after London settled a £400-million ($520-million, 475-million-euro) debt dating back to the time of the Shah of Iran.

Ashoori, from south London, has always denied the charges against him, and revealed that he had sent a voice message to the prime minister while he was detained.

In a separate interview with The Guardian newspaper, he said the foreign ministry advised the family for two years not to comment publicly on his detention.