Russia's diamond giant Alrosa said that rescuers were searching for 16 miners still unaccounted for after one of its mines in eastern Siberia suffered flooding on Friday with 151 miners inside.

Alrosa, Russia's largest diamond producer, said in a statement that 102 miners have been evacuated and 33 more are set to be raised to the surface while "16 people are being searched for" after water broke through into the mine at around 0730 GMT.