A UN military observer and a Lebanese language assistant were injured when an explosion occurred while they were on foot patrol along the Lebanon-Israel border on Saturday morning, the UN observer mission reported. The observer mission – the UN Interim Force in Lebanon (UNIFIL) – said it was investigating the cause of the incident on the Blue Line marking the disputed border. Lebanon’s official National News Agency (NNA) reported earlier that a drone had struck a UNIFIL vehicle. Three UN troops and an interpreter had been injured in the incident near the village of Rmeish, it said. Lebanese re…