The UK is set to reopen its embassy in Tehran after a four-year closure.
Foreign secretary Philip Hammond will reopen the embassy in the Iranian capital this weekend. At the same time, the Iranian embassy in London will also re-open.
The UK embassy in Tehran was shut in November 2011 after activists protesting against British sanctions stormed the building, burned the British flag and looted property.
This development marks a warming of Iran-UK relations and comes following the July agreement on the Iranian nuclear programme.
The last British foreign secretary to go to Tehran was Jack Straw in September 2001.
To get more news, click here to sign up for our free daily newsletter.