this is bbc news. i'm rebecca jones. the headlines: heading back to the uk — nazanin zaghari ratcliffe — the british iranian woman detained in iran since 2016 — has been freed. her husband richard has campaigned tirelessly for her release, including going on hunger strike. he gave this reaction, alongside their daughter. the smile on her face the smile on herface in the smile on her face in that photograph... it will be lovely to see her and we have chosen which toys we are taking and we are looking forward to being reunited. another british iranian, anoosheh ashoori, detained for more than four years, is also leaving tehran, bound for the uk. volodymyr zelensky makes an historic address to the us congress, calling on american fighterjets to impose a no—fly zone