At least 900 fires broke out in Tunisia over a 72-hour period, a senior official said on Friday, as the country grapples with an intense heatwave.

"These are not only forest fires but also brushland, crops, houses," said civil protection official Khalil Mechri, without offering details on the areas affected.

He said most of the blazes recorded between 20 and 22 July had been extinguished, though two major ones were still raging.

An Italian firefighting aircraft joined efforts Friday to contain the two wildfires, one of which is in the north-western region of Sakiet Sidi Youssef.

"We requested international assistance, and at the moment one Italian plane and two Algerian planes are helping to put out the fire,” said Colonel-Major of Civil Protection, Seif Eddine Dekhlaoui.