US labels Iranian military unit as terrorists

It is the first time the US has labelled a foreign government's military as a terrorist organisation. In response, Tehran said it now classified US forces in the Middle East as a terrorist organisation.

Also in the programme: Protests gain momentum in Sudan, and researchers in the US have used electric stimulation to rejuvenate powers of memory in older people.

Image: Members of the Iranian Revolutionary Guard listen to a speech in parliament in Tehran. Credit: Atta Kenare/AFP/Getty Images.