Complex sentence: The CIRA "Fermanagh Command" claimed that a CIRA unit fired a improvised rocket propelled grenade at a routine PSNI foot patrol in Lisnaskea, County Fermanagh which left three officers requiring treatment for minor injuries and shock.
Split into simpler sentences: The CIRA "Fermanagh Command" claimed that a CIRA unit fired a improvised rocket propelled grenade at a routine PSNI foot patrol in Lisnaskea, County Fermanagh. The rocket attack left three officers requiring treatment for minor injuries and shock.