Mr Rigi has appeared on foreign channels to rebut Iranian claims that he has been killed.

ECONOMIST: Iran (2)

Rigi pleaded guilty to the charges against him and appealed his sentence after asking for forgiveness, Press TV reported.

CNN: Iran executes militant group leader

Late Turner: Painting Set Free will reassess Turner's body of work during Turner's final years (1835-50) when some of his most celebrated works were created, such as The Blue Rigi, Sunrise (1842).

BBC: Matisse and Turner in new Tate shows