Russia rocket accident likely had two explosions, Norway monitor says

An explosion that killed five Russian scientists during a rocket engine test this month was followed by a second blast two hours later, the likely source of a spike in radiation, Norway's nuclear test-ban monitor said on Friday. The second explosion was likely from an airborne rocket powered by radioactive fuel, the Norsar agency said - though the governor of Russia's Arkhangelsk region, where the blast took place, dismissed reports of another blast. "The aftermath of the incident does not carry any threat," the governor, Igor Orlov, told the Interfax news agency.