A BBC crew was among the tourists visiting the volcano. Some vulcanologists from INGV Catania were present and said the situation wasn't serious.
Reporter Morelle revealed that a seasoned volcanologist involved said the incident was the most risky he had experienced in 30 years.
Morelle noted that similar explosions had killed people in the past.
In recent days Mount Etna has started spewing lava following its most recent eruption, which was on February 28 this year.
Mount Etna, which is on the island of Sicily, is Europe's most active volcano.
The explosion reportedly occurred when magna from the volcano hit snow.
A BBC team and a number of tourists were slightly injured when Mt Etna erupted unexpectedly earlier today.
The six injured were taken to hospitals in Catania and nearby Acireale.
The primary problem was that the lava hit snow that had fallen along the mountaintop, causing explosions because of the massive temperature difference.
Mount Etna, which is situated between the cities of Messina and Catania, was awarded Unesco World Heritage Status in 2013 due to its near constant state of activity and the scientific and educational value it yields.
She let her 13.8k followers in on the experience, and explained what caused the explosion.