Algerian troops have killed seven armed militants who crossed the border from neighbouring Tunisia, the state news agency APS reported on Friday.

There has been less militant violence in Algeria since the North African country ended its 1990s war with Islamists that killed 200,000 people. But chaos in neighbouring Libya has allowed militants to strengthen their presence in the Maghreb.

APS said the militants had crossed the border in a vehicle and had tried to flee to the Boudjelal mountain area, but there were surrounded and killed by Algerian troops near Tebessa, around 300 miles (480 km) east of Algiers.