A local state radio in Abijan the Ivory Coast capital has announced the arrest of 12 suspects following an attack on a military base last week.
The attack on a military base in the northern part of Abidjan left a soldier wounded while three assailants were killed and a fourth injured.
Security experts have long warned that the terrorist campaign in the Sahel which sprang up in northern Mali in 2012 before advancing into Niger and Burkina Faso could spread into countries on the coast of the Gulf of Guinea.
On March 29, suspected terrorists killed three members of the security forces on the northern border with Burkina Faso.
Three terrorists were killed and four were arrested in the two attacks, the army said.
On April 12, a gendarmerie vehicle travelling in the same area was hit by an improvised explosive device, but without suffering any casualties, in the first known IED attack on Ivorian soil.