Erfan Soltani, 26, is reportedly facing imminent execution, as rights groups fear for more than 18,000 people detained in the crackdown

Washington and Tehran step up war of words over Donald Trump’s threat to intervene in response to unrest

DUBAI/JERUSALEM: Unrest in Iran has killed more than 500 people, a rights group said on Sunday, as Tehran threatened to target US military bases if President Donald Trump carries…