Protesters face execution as the Iranian regime continues its violent crackdown, defying the US president, Donald Trump, who has threatened ‘very strong action’ if demonstrators are killed. Lucy Hough speaks to journalist Deepa Parent about what she is hearing from those inside Iran

US president says he ‘may have to act’ before talks amid crackdown that rights group says has led to at least 538 deaths

Hundreds of people are believed to have been killed, as days of large demonstrations threaten the regime. Here's what you need to know.