A mechanic of the "Mikhail Lermontov" passenger ship works in an engine-room during preparations for a voyage, in Russia's Siberian city of Krasnoyarsk, June 7, 2013. Yenisei, one of the largest river systems in the world which rises in Mongolia and flows into the Arctic ocean, is the life artery for the residents populating its banks. Picture taken June 7, 2013. REUTERS/Ilya Naymushin (RUSSIA - Tags: TRANSPORT SOCIETY TRAVEL MARITIME BUSINESS EMPLOYMENT)

Igor Chernyayev, an officer of the "Mikhail Lermontov" passenger ship, stands at the wheel of the ship on the Yenisei river, about 100 km (62 miles) north of Russia's Siberian city of Krasnoyarsk, June 12, 2013. Yenisei, one of the largest river systems in the world which rises in Mongolia and flows into the Arctic ocean, is the life artery for the residents populating its banks. Picture taken June 12, 2013. REUTERS/Ilya Naymushin (RUSSIA - Tags: TRANSPORT MARITIME TRAVEL SOCIETY BUSINESS EMPLOYMENT)

An officer of the "Mikhail Lermontov" passenger ship points at an echo-sounder on the Yenisei river, about 100 km (62 miles) north of Russia's Siberian city of Krasnoyarsk, June 12, 2013. Yenisei, one of the largest river systems in the world which rises in Mongolia and flows into the Arctic ocean, is the life artery for the residents populating its banks. Picture taken June 12, 2013. REUTERS/Ilya Naymushin (RUSSIA - Tags: TRANSPORT SOCIETY TRAVEL BUSINESS EMPLOYMENT MARITIME)

The "Mikhail Lermontov" passenger ship sails along the Yenisei River near Galanino village, about 250 km (155 miles) north of Russia's Siberian city of Krasnoyarsk, June 13, 2013. Yenisei, one of the largest river systems in the world which rises in Mongolia and flows into the Arctic ocean, is the life artery for the residents populating its banks. Picture taken June 13, 2013. REUTERS/Ilya Naymushin (RUSSIA - Tags: TRANSPORT MARITIME SOCIETY TRAVEL)

People walk near the Russian writer Mikhail Lermontov monument during snowfall in the southern Russian city of Stavropol March 26, 2007. REUTERS/Eduard Korniyenko (RUSSIA)