Complex sentence: Four people were also injured on July 18 when two hand grenades went off at a barbershop in Wajir and three police officers were injured on July 25 when their patrol hit a landmine.
Split into simpler sentences: Four people were reported injured on 18 July when two hand grenades went off at a barbershop in Wajir. In addition, three police officers were injured on 25 July when their patrol hit a landmine.