dubai five bahraini policemen lightly injure terrorist explosion outside capital manama monday state news agency report agency say blast occur village daih budaiya road policemen guard procession shi ite muslims mark annual ashura festival commemorate death prophet mohammad grandson imam hussein 1400 years ago agency quote interior ministry say twitter account necessary step take without give detail explosion late series attack target policemen western-allied country u.s. fifth fleet base government blame attack shi ite militants say back iran destabilize country charge tehran deny june member bahrain security force kill explosion village diraz hometown spiritual leader country shi ite community ayatollah isa qassim interior ministry blame terrorists attack explosion wound five bahraini policemen agency