An unexploded 81mm mortar shell was discovered at a construction site in Mancheon-ri, Chuncheon, Gangwon Province, South Korea. Authorities were notified and subsequently retrieved the ordnance. The discovery prompted a response from military officials who secured the area and removed the unexploded projectile. No injuries or disruptions to surrounding areas were reported. The origin and age of the mortar shell are currently unknown and will be investigated by the military. This incident highlights the potential for unexploded ordnance to remain hidden, even decades after conflicts. The site has been cleared and construction work is expected to resume following a safety assessment.