A failure of brakes on a wet runway was the possible cause of the Russian jet crash in Siberia which killed at least 122 people, initial reports suggest.

The S7 Airlines plane from Moscow ran out of control after landing at Irkutsk on Sunday morning and hit a building.

Latest reports say 70 of the 204 on board survived - 12 are still missing.

Russian President Vladimir Putin has expressed his condolences to the families of the dead and called for a national day of mourning on Monday.

Many of the passengers were travelling to the nearby popular holiday destination of Lake Baikal. Eight of those confirmed dead are children.

The airline said one German, an Azeri and three Full Story