At least 10 soldiers were injured in an explosion during a live-fire simulation drill at a South Korean military base on Wednesday, the defence ministry in Seoul said.The explosion happened at a military base in the northern border city of Paju, the Ministry of Defence said in a statement, where an artillery unit was conducting a drill simulating live-fire procedures but without real ammunition.“At approximately 3.24pm on Wednesday, a mock training round designed to simulate artillery fire and...