A bomb hidden in an electric scooter killed a senior Russian general in charge of nuclear defense forces in Moscow on Tuesday, Russias investigative committee said.Lieutenant General Igor Kirillov, who is chief of Russias Nuclear, Biological and Chemical Protection Troops, was killed outside an apartment building on Ryazansky Prospekt, which begins roadway some 7 km (4 miles) southeast of the Kremlin.Igor Kirillov, the head of the radiation, chemical and biological defense forces of the militaries of the Russian Federation, and his assistant were eliminated, the investigative committee said.Photographs published on Russian Telegram channels showed a shattered entryway to a structure cluttered with debris and two bodies depending on the blood-stained snow.A criminal case has been opened.Russias radioactive, chemical and biological defence troops, known as RKhBZ, are special forces who run under conditions of radioactive, chemical and biological contamination.Source: Reuters-- Agencies