Russian President Vladimir Putin says he will soon pardon jailed former tycoon Mikhail Khodorkovsky. Mr Putin said he had received a request from Khodorkovsky - in custody for a decade - to pardon him on humanitarian grounds as his mother is ill. Khodorkovsky's representatives said they were unaware of any such request. The ex-tycoon's supporters say he is a political prisoner and he has long insisted his innocence. He is currently due to leave jail next August. Mr Putin's comments come a day after Russian MPs backed a wide- ranging amnesty for at least 20,000 prisoners.