The Bulgarian Ministry of Interior does not have the funds needed for maintenance of maritime and land border security systems, Deputy Interior Minister Philip Gounev told the Capital Daily and added that during the past year the Interior Ministry asked four times the Ministry of Finance for additional funds, but requests were rejected because of the lack of a clear plan for dealing with the refugee crisis. Maintenance of thermal, seismic and infrared sensors, as well as radar equipment costs millions of euro each year. The financing has so far been provided by the EU and no money from the national budget was spent, Mr. Gounev added.