Question: Blast bomb, is a term used in Northern Ireland, for a type of improvised explosive device, a police officer was killed by a blast bomb in Northern Ireland during which ethno-nationalist conflict in Northern Ireland during the late 20th century, by loyalists?
Sentence (from "The Troubles"): The Troubles (Irish: "Na Trioblóidí" ) was an ethno-nationalist conflict in Northern Ireland during the late 20th century.
Relevant evidence: Yes