The public inquiry into the death of Alexander Litvinenko has concluded that Vladimir Putin "probably" approved the assassination of the former Russian spy.

The chairman of the report, Sir Robert Owen, says it's likely the Russian President signed off the killing following a long-running feud.

He died in 2006 after drinking tea laced with radioactive polonium in London.

Mr Litvinenko's widow Marina welcomes the findings.

Russia is accusing the inquiry of being 'politically motivated', which clouds the 'general atmosphere' between it and the UK.

Downing Street says the Prime Minister thinks the findings are "extremely disturbing".

The head of the investigation Sir Robert Owen said the operation to kill Mr Litvinenko was 'probably' approved by Vladmir Putin, and Russia's FSB intelligence service.

Helen Vaughan filed this report on today's findings and reaction to the report.