The suspects are identified as Jean Claude Byukusenge, Jean Berchmans Matakamba, Simeon Nikuze, and Innocent Ntibiramira
They are said to be part in the five separate attacks that occurred in the sectors of Nyakarenzo, Mururu and most recently in Kamembe
Three shootings occurred in Nyakarenzo, one in Mururu and the recent grenade attack in Kamembe, Kamashangiro Cell, which left three people with minor injuries.
A vehicle was also set ablaze and one person injured when two men armed with rifles attacked in Cyimbogo Village of Karangiro Cell, on October 7.
Security also recovered four guns, four grenades (two tortoise and two stick grenades) and ammunitions from the four suspected gunmen.
Meanwhile, the quartet was on Sunday paraded before residents in the three affected sectors.
The Governor of the Western Province, Alphonse Munyentwari thanked the residents for their role in identifying and sharing information with security, which led to the arrest of some of the attackers and seizure of weapons they were using.
Governor Munyentwari, who was accompanied by senior military and Police officers, reassured the residents of their security but urged them to "stand tall against anyone with intentions of destabilizing your security, peace and the overall wellbeing."