MOSCOW (Reuters) -Blasts rocked a Russian air base near seaside resorts in the annexed Crimean peninsula on Thursday, injuring five people according to local authorities in what Moscow attributed to detonations in ammunition stories. Local witnesses told Reuters they heard at least 12 explosions around 3:20 p.m. local time (1220 GMT) from the Saky air base near Novofedorivka on Crimea’s western coast. They described a final blast around 30 minutes later as the loudest. Crimea has so far been spared the intense bombardment and artillery combat that have taken place in other areas of eastern and…