diff --git a/src/Geant4Worker/Geant4Worker.ts b/src/Geant4Worker/Geant4Worker.ts
index 7f148bf95..d097a39ac 100644
--- a/src/Geant4Worker/Geant4Worker.ts
+++ b/src/Geant4Worker/Geant4Worker.ts
@@ -154,6 +154,11 @@ export default class Geant4Worker {
 		);
 	}
 
+	cancel() {
+		this.markSafeForTermination();
+		this.state = StatusState.CANCELED;
+	}
+
 	markSafeForTermination() {
 		// we can delay the call should it be needed in the future
 		this.destroy();
diff --git a/src/services/Geant4LocalWorkerSimulationService.ts b/src/services/Geant4LocalWorkerSimulationService.ts
index 6ab23b8c7..2d177d8a0 100644
--- a/src/services/Geant4LocalWorkerSimulationService.ts
+++ b/src/services/Geant4LocalWorkerSimulationService.ts
@@ -536,6 +536,12 @@ export default class Geant4LocalWorkerSimulationService implements SimulationSer
 	}
 
 	cancelJob(info: SimulationInfo, signal?: AbortSignal | undefined): Promise<void> {
-		throw new Error('Method not implemented.');
+		const { jobId } = info;
+
+		if (this.workers.hasOwnProperty(jobId)) {
+			this.workers[jobId].cancel();
+		}
+
+		return Promise.resolve();
 	}
 }