The latest eruption -- the third since March -- began Sunday and opened a new crater on Etna's southeast side, Britain's Telegraph reported.
Scientists said there was no immediate danger to several villages on the mountain's opposite side, and no injuries have been reported.
Jets of lava were observed shooting 600 feet into the air since Sunday, the report said.
In December, the airport at Catania, south of Etna, was closed for two weeks because of restricted visibility from airborne ash from the volcano.
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