Clashes between rival armed groups in Bria, a strategic town in eastern Central African Republic, have left dozens of dead, a senior official said on Tuesday. "There are about 50 dead. Some bodies were immediately buried by relatives, so it is difficult to give a precise figure," said the prefect of Haute-Kotto department, Evariste Binguinidji. The clashes are the latest test to a nearly year-old agreement aimed at bringing peace to the CAR, a country torn by militia violence. clt/cma/js/sd/ri/bp