Russia's Koryakski volcano on the eastern Kamchatka Peninsula has erupted sending ash 6,000 metres (20,000 feet) into the air, according to the local geophysics service.
In the past 24 hours, about 170 tremors have been registered near the volcano. The last major eruption occurred 3,500 years ago.
There are more than 150 volcanoes on the peninsula, 29 of them active.
One-Minute World News 
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