Europe's largest active volcano erupted late Friday, spewing ash high into the air and closing two nearby airports.

A mighty eruption of Sicily's Mt. Etna sent molten lava 1.5 kilometers down one side of the mountain and forced the evacuation of some residents of the area.

Mt. Etna continues the lively Strombolian activity of the New South East Crater, which has generated a long lava flow, which flows from the valley of the Bove, on the east coast of Sicily, Italy, on Saturday, July 20, 2019. [Photo: IC]

The ash strewn into the air was visible all across eastern Sicily, and it limited visibility to the point that officials closed the two airports in Catania, Sicily's second-largest city.

Media reports said that by Saturday morning, the airports were operating at partial capacity and would fully re-open by Sunday.

According to local media reports, Mt. Etna had been producing puffs of smoke in recent weeks, and it had a small eruption in December.

Mt. Etna continues the lively Strombolian activity of the New South East Crater, which has generated a long lava flow, which flows from the valley of the Bove, on the east coast of Sicily, Italy, on Saturday, July 20, 2019. [Photo: IC]

The last major eruption of Mt. Etna took place more than a decade ago.

Earlier this month, a volcano on the small island of Stromboli, around 100 kilometers north of Mt. Etna, erupted, leaving one hiker dead and forcing dozens of tourists and residents to flee.

According to Italy's National Institute of Geophysics and Volcanology, the recent volcanic activities in the area are all related, and it could signal risks for more volcanic activities going forward.