The minesweepers of the Yugoslavian navy according to a CIA report dated 21 February 1949

An item reported that the Yugoslavian navy possessed over the minesweepers with an armament of 1-7,6cm gun and 2-8mm machineguns and an average speed of 9 miles. The Orao (M 4), Split (M 5), Loncaveric (M 6) and Ori (M 7) were stationed at Boka Kotorska [Montenegro], the Mljet (M 1) at Split {Croatia].

Source
The report was published on www.archive.org, document number CIA-RDP82-00457R002400100011-6