The local media said the search of the damaged house discovered five pieces of a round-shaped explosive object and later investigation confirmed the object was launched from a hill, 1.6 kilometres northwest of Laukkai. 

Security forces also discovered a suspected bag containing many night binoculars, 108mm rocket launchers, and grenades scattering a hill 3.2 kilometres north of Laukkai. 

On October 18, 2015, Myanmar lifted the ban on militarily managing the Kokang region, the focal point of military conflicts between the governmental forces and the Myanmar National Democratic Alliance Army (MNDAA) in February, 2015. 

The MNDAA unilaterally announced a ceasefire on June, 2015 for peace and stability along the border for the general election in November that year. 

However, the MNDAA was not invited to participate in a peace agreement that the Government signed with eight armed groups on October 15, 2015. 

The Myanmar government wants to hold independent talks with the group.