River of red-hot lava is captured flowing down the side of Mount Etna in breathtaking drone footage
- Smoking magma can be see rolling down the snow-topped mountainside as the drone glides in and out
- Outpouring comes just weeks after an eruption forced a BBC reporter and a scientist to flee for their lives
- Mount Etna in Sicily is one of the world's most active volcanoes and is 3,330-metres (10,926-feet) high
Continue reading, see more images, and VIDEO captured by drone
The river of lava was shot over a period of weeks by a US serviceman who is based in Italy.
This latest phase of activity on March 29 follows the first eruption in more than a year at the end of February.
The volcano, one of the most active in the world, has been largely dormant for the last two years.
The last time Etna posed a serious threat to villages on its slopes was in 1992, when lava streams headed towards Zafferana, a town of 7,000 people.
In a spectacular operation, Italian and US soldiers used controlled explosions to divert the flow.
But since February it has woken and sent lava and smoke high into the air.
Etna, at 3,330 metres (10,926 feet), is the highest volcano in mainland Europe.
Earlier in March, Etna experienced more activity, including a sudden explosion in which 10 people were injured, including a BBC reporter and scientist.
The eruption came from a relatively new crater on the southeastern side of the 3,000-metre peak.
After running to safety the BBC's global science correspondent, Rebecca Morelle, tweeted: 'BBC team all OK - some cuts/ bruises and burns. Very shaken though - it was extremely scary.
'Running down a mountain pelted by rocks, dodging burning boulders and boiling steam - not an experience I ever ever want to repeat,' she added.
She described it on Twitter: 'Lava flow mixed with steam - caused huge explosion - group pelted with boiling rocks and steam.'
Ms Morelle, who was on the volcano with cameraman Rachel Price and producer Alison Francis, said eight people had suffered head injuries, burns, cuts and bruises.
Mount Etna had erupted for the third time in just under three weeks, spitting molten lava nearly 650 feet into the sky above Sicily.
The temperature inside the mountain is believed to be 1,000 degrees Centigrade (1,832 degrees Fahrenheit).
And the eruption was even captured from space by orbiting thermo-imaging cameras developed by the National Institute of Geophysics and Volcanology (INGV)
Stunning Drone Footage of Etna's Lava