TUNIS: Tunisian troops killed four suspected militants in a counter-terrorism operation overnight that was still continuing on Tuesday, the Interior Ministry spokesman said.

There were no security force casualties in the operation in the Ain Jaffel area on the border between the central provinces of Kasserine and Sidi Bouzid, Yasser Messbah told AFP.

Kasserine province, which neighbors Algeria, has seen repeated clashes between security forces and militants.

Late last month, a suspected militant was killed in an exchange of fire in the Mount Mghila area of the province.

It lies next to Mount Chaambi, which is considered to be the militants’ main rear base and has been the target of repeated sweeps by the security forces since 2012.

Militants have killed dozens of police and soldiers since the 2011 revolution that ousted longtime ruler Zine El-Abidine Ben Ali.