Scientists have warned that a supervolcano in Italy may be closer to erupting than previously believed.
Scientists from the Vesuvius Observatory and University College London (UCL) claim Campi Flegrei could be approaching a critical stage which could increase the likelihood of an eruption.
Campi Flegrei is just nine miles away from Naples and the director of UCL's Hazard Centre, Christopher Kilburn, has said authorities must be prepared for a possible eruption.
Although the volcano is not as well-known as Vesuvius, which erupted in 79AD in arguably the most devastating volcanic incident of all time, it could have a devastating effect on Naples and Pozzuoli and disrupt air travel in a similar way to Iceland’s Eyjafjallajökull volcano, which erupted in 2010.
It is claimed the volcano has been restless for almost seven decades and it has caused many small earthquakes. In fact, it hasn't been this active since the year 1538.
Despite the warnings, however, scientists believe an eruption is not imminent.