The ill-fated boys, aged 12 and 14 years old, were neighbors, he said.
Landmines and unexploded ordnances killed 18 Cambodian people and injured 93 others in 2015, according to a government report.
The Southeast Asian country is one of the countries that suffered badly from landmines and unexploded ordnances. An estimated 4 to 6 million landmines and other munitions were left over from three decades of war and internal conflicts that ended in 1998.
The country is seeking about 36 million U.S. dollars a year for the next decade to entirely get rid of all types of landmines and explosive remnants of war.
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