An explosion kills the head of Russia's nuclear defense forces in Moscow

A senior Russian general was killed Tuesday by a bomb hidden in a scooter outside his apartment building in Moscow. A Ukrainian official said the country's security service carried out the attack.

An explosion kills the head of Russia's nuclear defense forces in Moscow
Maj. Gen. Igor Kirillov, the chief of the Russian military

A senior Russian general was killed Tuesday by a bomb hidden in a scooter outside his apartment building in Moscow. A Ukrainian official said the country's security service carried out the attack.

(Image credit: AP)