sofia three people kill one miss torrential rain lash low-laying part black sea port city bourgas flood several surround villages southeastern bulgaria early wednesday local authorities say strong rain cut electricity supply least five villages force rivers outburst bank flood dozens home block roads kameno municipality authorities declare emergency situation people village trastikovo 390 km 242 miles east sofia evacuate flood water break dyke weather forecasters say strong rain expect continue wednesday three kill one miss torrential rain bulgaria