Iran
The Cambridge-educated lecturer was arrested in September 2018 and given a ten year sentence.
PM won't want to appear disloyal, but knows he has to stand up for UK interests.
Judiciary spokesman Gholamhossein Esmaili did not say how many individuals have been detained or name them.
Analyst Negar Mortazavi tells HuffPost UK that journalists and sports stars have been emboldened to criticise regime.
Rob Macaire has said he was intending to join a vigil for plane crash victims, but left as an anti-government demonstration broke out
The husband of jailed British-Iranian mother Nazanin Zaghari-Ratcliffe described the news of the arrest as a "really bad sign".
All 176 people on board the flight were killed.
The statement “Iran and the United States do not get on” is perhaps one thing we can all agree on. What is less clear, however, is: why? Here’s a brief history of the tense relationship between the two countries.
The world has expressed its shock after the recent crisis involving Iran and the US – but things get even more complicated when you’re an Iranian-American Brit. We spoke to Iranian-born filmmaker and British / American national Tina Gharavi, who expresses her fear at what growing hostility between the two nations could mean for her family. Tensions between the US and Iran have reached breaking point after Iranian commander General Qassem Soleimani was killed in a US airstrike in Iraq.
Secretary of State Mike Pompeo insisted that despite the lack of specifics, the attacks were really, really imminent.