Two consecutive explosions occurred in the suspected landmine blast that critically injured two South Korean soldiers inside the demilitarized zone (DMZ) earlier this week, with forensic analysis under way into collected mine fragments, a military official said Wednesday. Authorities are investigating Monday's blast that occurred south of the Military Demarcation Line (MDL) within the DMZ separating the two Koreas, as speculation grows over potential North Korean involvement. Military officials have confirmed that one battalion commander suffered a severe injury to his ankle, with a noncommissioned officer sustaining a leg fracture. They were clearing a path for a U.N. Command (UNC) inspection on North Korea's suspected mine-laying activities, originally set for early next week. "Two explosions occurred in total. Around 10:50 a.m., a staff sergeant was injured in the first blast, while the battalion commander was injured in a second blast that occurred when he approached the staff sergeant to administer first aid at the scene," a military official told reporters, citing initial statement