A senior Russian general was killed Tuesday by a bomb hidden in a scooter outside his apartment building in Moscow, a day after Ukraine�s security service leveled criminal charges against him. A Ukrainian official said the service carried out the attack.

Lt. Gen. Igor Kirillov, the chief of the military�s nuclear, biological and chemical protection forces, was killed as he left for his office. Kirillov�s assistant also died in the attack.

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