MOSCOW — A Russian general was killed by a car bomb on Friday, Russia’s top criminal investigation agency said, in the second such attack on a top Russian military officer in four months that Moscow has blamed on Ukraine.

The Investigative Committee said that Lt. Gen. Yaroslav Moskalik, a deputy head of the main operational department in the General Staff of the Russian armed forces, was killed by an explosive device placed in his car in Balashikha, just outside Moscow, Russia’s capital.

The committee’s spokesperson, Svetlana Petrenko, said that the explosive device was rigged with shrapnel. She said that investigators were at the scene.

Russian media ran videos of a vehicle burning in the courtyard of an apartment building.

The committee did not immediately mention possible suspects, but Russian Foreign Ministry spokesperson Maria Zakharova declared without offering evidence that “there are reasons to believe that Ukrainian special services were involved in the killing.”

Ukrainian authorities did not comment on the attack.

— The Associated Press