 The United Nations and the United States had estimated the number of mines in Nagorno-Karabakh at 100,000, but after its 1998 assessment mission, the UN Mine Action Service concluded that the mine problem was not nearly as bad as original estimates portrayed.Artsakh has stated that it has never produced or exported mines, and has not purchased new mines since 1995; its mine stockpile consists of mines left over from the former Soviet Union (PMN, PMN-2, POMZ-2, OZM-72, TM-57 and TM-62 mines).There were no official reports of new mine use in Nagorno-Karabakh in 2004 or the first half of 2005.