The outbreak was reported by the Bulgarian authorities in domestic animals in Dolno Yabalkovo village, Sredets municipality, Burgas region (located in 3 km protection zone around outbreak 4).
All susceptible animals within 3 km of the infected premises are being culled and those in the 3 to 10 km circle have been tested.
http://ec.europa.eu/food/animal/diseases/controlmeasures/fmd_bg_en.htm