Approximately 2 million mines were laid in various areas of Croatia during the war. Most of the minefields were laid with no pattern or any type of record being made of the position of the mines. A decade after the war, in 2005, there were still about 250,000 mines buried along the former front lines, along some segments of the international borders, especially near Bihać, and around some former JNA facilities. As of 2007, the area still containing or suspected of containing mines encompassed approximately . More than 1,900 people were killed or injured by land mines in Croatia since the beginning of the war, including more than 500 killed or injured by mines after the end of the war. Between 1998 and 2005, Croatia spent €214 million on various mine action programs. As of 2009, all remaining minefields are clearly marked. During the 2015 European migrant crisis, there existed concerns over areas where mines could affect the flow of refugees coming from Serbia to Croatia.