North Korea Claims 'Perfect Success' in Hydrogen Bomb Test

North Korea says it has successfully tested a nuclear weapon that could be loaded on to a long-range missile.

Also on the programme: German Chancellor Angela Merkel and candidate Martin Schulz hold a televised debate ahead of the general election; and a picture editor describes some of the strongest photos from Storm Harvey in Texas.

(Photo: North Korean leader Kim Jong-un inspecting what the state media described as a hydrogen bomb. Copyright: Reuters/KCNA)