President Vladimir Putin has boasted that his military operation in Ukraine has strengthened Russia and denied that the downfall of a key ally in Syria had dented Moscow’s prestige.

The killing of a senior Russian general in a bombing outside his apartment building in Moscow was the boldest assassination yet of a top military officer and it again brought the war in Ukraine to the streets of the capital.

Russia’s security service says it has detained a citizen from Uzbekistan in the bombing that killed a senior general as he left his Moscow apartment — a bold assassination that was claimed by Ukraine’s security service.

Ukraine’s Security Service has claimed responsibility for killing Lt. General Igor Kirillov, head of the military’s nuclear, biological and chemical protection forces, in a bombing in Moscow.

A senior Russian general was killed by a bomb hidden in a scooter outside his apartment building in Moscow.