Tunisian security forces have killed 10 militants around Ben Guerdane near the counrtry's border with Libya, raiding a construction site in search of food and a suspect barricaded in a house on Wednesday, after at least 55 people died in an attack on Monday.
Two "terrorists" and a soldier were killed in a firefight in the Oued Rbyaa area, the defence and interior ministries said, adding that one soldier was killed during military raids late on Tuesday into Wednesday morning.
The clash came as thousands of mourners gathered in Ben Guerdane for the funerals of people killed in Monday's full-blown attack on the town of some 60,000 residents.
Schools across the country held a minute's silence in memory of the seven civilians and 12 members of the security forces killed in the assault that the authorities blamed on the terrorist group DAESH.
Thirty six attackers were also killed. The number of dead attackers has risen to 45 after another seven were killed overnight.
The ministries said that four Kalashnikov assault rifles were recovered from the nighttime clashes in the Benniri area, a few kilometers south of Ben Guerdane.
Schools nationwide observed a minute's silence early on Wednesday ahead of funerals for some of the victims.
The security source said the bodies of 11 people were buried in the town cemetery in an area newly designated "The Martyrs of March 7."
"Most of the attackers were Tunisians, and the majority of them were already in Ben Guerdane except for a few who infiltrated from Libya or maybe crossed over at the Ras Jdir border point," government spokesman Khaled Chaouket said.
Prime Minister Habib Essid blamed the attack on the terrorist group DAESH, which has grown in strength just over the border in Libya, taking advantage of the chaos there to expand its presence and draw in foreign recruits.
Since the fall of Muammar Gaddafi five years ago, Libya has slipped into chaos, with two rival governments and armed factions struggling for control. DAESH has grown in the turmoil, taking over the city of Sirte and drawing in foreign recruits.