evidence: - Barely a week later, a Uganda-registered barge belonging to the Canadian company Heritage Oil was attacked by another FARDC patrol near Rukwanzi island, on Lake Albert, killing a UK civilian oil worker. Kinshasa again claimed that this barge had illegally crossed into Congolese waters, although this was strenuously denied by the Ugandan authorities, who insisted that Rukwanzi is in Ugandan waters.