The Cambodian Mine Action Centre has now cleared more than 1,000 unexploded pieces of ordnance, weighing roughly eight tonnes, from a sunken boat in Kampong Chhnang province. CMAC director-general Heng Ratana said most of the explosives were artillery and mortar shells. The boat, discovered earlier this month in the Tonle Sap river, is thought to be from the Lon Nol era. CMAC has also concluded a two-week training course with the Colombian Mine Action Centre to share its knowledge and experience. Heng Ratana said it was the third time that teams from the two countries had met through support from the Japan International Co-operation Agency.