Moscow

Chechen rebel leader Doku Umarov has taken responsibility for the suicide bombing at Domodedovo airport last month. The attack in Moscow killed 36 and left 180 injured.

Mr Umarov has been labelled as one of Russian's most wanted men, as he threatens further attacks on the country.

In a video posted online he appeared alone wearing combat fatigues and promised  "regular, deeper and more aggressive operations".

Hillary Clinton will arrive at the Moscow summit tomorrow as anger over Israeli settlements hinders the peace progress in the Middle East..

Mrs Clinton will join the meeting of the Quartet of International Mediators in Israeli-Palestinian peace talks, due to start on Friday.

Hope for successful peace discussions were diminished earlier this week when Israel declared it would build 1,600 new homes in East Jerusalem. The US Secretary of State said the move was "a deeply negative signal" for the Middle East peace process.