李在明指示：严查无人机事件，这是严重犯罪

Core Viewpoint - The article discusses the tensions between South Korea and North Korea following allegations from North Korea that a South Korean drone violated its airspace, prompting South Korean President Yoon Suk-yeol to order a joint military-police investigation into the incident [1][2]. Group 1: Incident Overview - North Korea accused South Korea of sending a drone into its airspace, which it claims is a serious provocation [1]. - The drone reportedly took off from Incheon, South Korea, and was used for reconnaissance purposes over several important sites in North Korea before it was shot down [2]. Group 2: South Korean Response - President Yoon Suk-yeol ordered a thorough investigation into the drone incident, emphasizing that if it was a civilian-operated drone, it poses a significant threat to peace and national security on the Korean Peninsula [1]. - The South Korean Ministry of National Defense stated that the military did not operate the type of drone in question and has no intention of provoking North Korea [1]. Group 3: Diplomatic Efforts - The South Korean Ministry of Unification held an emergency meeting to assess the situation and discuss strategies to ease tensions and build trust between the two Koreas [1]. - The Ministry reiterated its commitment to ongoing efforts to reduce tensions and foster mutual trust [1].