Ten people were injured by flying rock and lava after Mount Etna, Europe's biggest active volcano, burst into life on Thursday, according to a BBC journalist and others caught up in a terrifying drama on the upper slopes. The 10 suffered minor burns, cuts and bruises and six were hospitalised. German volcanologist Boris Behncke described on his Facebook page how the explosion was triggered by a build-up of steam after molten lava overran a layer of snow.



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