A huge blaze has broken out on the slopes of Italy's Mount Vesuvius and near the city of Naples, prompting an evacuation of tourists and local residents for the second time in a week.

The huge pillars of smoke from fires raging through the forests on the slopes of Vesuvius rose to more than 2 kilometers up in the air and were also 2 kilometers wide at the top, AP reports. Clearly visible from Naples, the smoke deceived some people into believing that the volcano was erupting.

The local weather channel 3B Meteo compared images of the fires with pictures of the volcano's most recent eruption in 1944, which destroyed three villages.

Many tourists, who were visiting the famous archeological site of the Ancient Roman city of Pompeii, not far from Naples, also witnessed huge clouds of smoke darkening the skies.

Huge ongoing fire on Mount Vesuvius. The view of the smoke from Pompeii. pic.twitter.com/9iQRAffRqN — Nida (@nidssserz) July 11, 2017

Some local residents turned to social media to say that ash from the fires fell in many neighboring towns.

when you think it's just cloudy but it turns out the vesuvius was on fire and that's all smoke, it's now raining ashes too pic.twitter.com/PSsxmOHf47 — melania. (@MelaniaSpizuoco) July 11, 2017

According to some twitter posts, hundreds of people were evacuated from the area.

The Italian Civil Protection Agency called the fire outbreak in the Vesuvius National Park one of the “most critical situations,” as reported by the Local.

Fires broke out on the volcano's northeastern side, news agency Ansa reported, as well as in two locations on the southwest side, including Via Vesuvio in Herculaneum which was the scene of another blaze the previous week.

Some residents were evacuated from their homes on Monday, local media reported, adding that, on Tuesday, some restaurants, businesses and more homes were evacuated as a precaution.

Italy has faced a large number of fires, following months drought and heat, and the situation is most serious in the south.

More than 600 firefighters and Civil Protection workers were tackling at least 100 active fires in the Italian region of Campania, where Vesuvius is located, on Tuesday.

Sicily has also been particularly severely hit by fires in recent days, with two large blazes breaking out at Enna near the center of the island and Messina at its most northeastern point, the Local reports.

Live, il Vesuvio continua a bruciare...😔 #forzanapolisempre #sscnapoli #terramia #vesuvio #napoli A post shared by @uronechannel on Jul 11, 2017 at 5:13am PDT

A coloro che hanno causato questo ed alla loro progenie auguro di non svegliarsi domani. Munnezza del genere non serve a niente, è solo dannosa! #vesuvio #incendio A post shared by Giuseppe Menzione (@giuseppemenzione) on Jul 11, 2017 at 4:35am PDT

#Vesuvio #Napoli A post shared by @vigili_del_fuoco on Jul 11, 2017 at 1:16pm PDT

Our land do not give up! #vesuvio #vesuvius #ourland #donotgiveup A post shared by Sannino Napoli (@sannino.napoli) on Jul 11, 2017 at 1:14pm PDT