At least 26 people died and dozens of others were injured in forest fires that ravaged 14 districts of northern Algeria on Wednesday, the interior minister said.

Kamel Beldjoud told state television that 24 people died in fires in El Tarf, near the border with Tunisia, and two others died earlier in Setif.

The civil protection agency in Setif had said that two women, "a 58-year-old mother and her 31-year-old daughter," were killed in the town.

In Souk Ahras, farther to the east near Algeria's border with Tunisia, people were seen fleeing their homes as fires spread before firefighting helicopters were deployed.

An earlier update said four people in Souk Ahras suffered burns and 41 others had breathing difficulties, the authorities said. Media reports said 350 residents had been evacuated.

No current figures were given on the number of people injured in the fires in other areas.

The police have closed several roads as a result of the fires.

"Thirty-nine fires are underway in 14 wilayas [administrative councils]," the civil protection agency said, noting that El Tarf was the worst hit, with 16 fires in progress.

Helicopters used buckets to drop water on fires in three wilayas, including Souk Ahras.

Since the start of August, 106 fires have broken out in Algeria, destroying more than 2,500 hectares of woodland.

Beldjoud said some of the fires were started by people.

Wednesday's toll brought the total number of people killed in wildfires this summer to 30.

Algeria has 4.1 million hectares (10.1 million acres) of forest. Each year the northern part of the country is affected by forest fires, a problem that has worsened because of climate change.

Last year, at least 90 people died in forest fires that ravaged northern Algeria, destroying more than 100,000 hectares of woodland.