Russia's top security agency says it has arrested four Russians accused of making preparations to kill senior Defense Ministry officials on Ukraine's orders.

Russian security officials said it arrested four Russians accused of planning to kill senior officials with the Defense Ministry.

Russia has arrested four people on suspicion of plotting to assassinate senior defence officials and their families on Ukraine’s orders, the Kremlin’s Federal Security Service (FSB) said.

According to the Federal Security Service (FSB), four Russians were involved in an alleged Ukrainian plot to assassinate senior military officers.

The head of Russia's chemical and biological forces, Lt. General Igor Kirillov, was killed in a Moscow bomb blast claimed by Ukraine.

Kirillov ran Russia’s nuclear, biological and chemical defense forces. Kyiv previously accused him of ordering the use of chemical weapons against Ukraine.

Kirillov, who has been killed in Moscow, was accused by the West of overseeing the use of chemical weapons on the battlefield in Ukraine.

The deputy director of the Franco-Russian observatory and associate researcher at IRIS (Institute of International and Strategic Relations), Igor Delanoë, explains that the Ukrainians have been “engaged in targeted eliminations” for two years now.

Russia said on Wednesday it had detained a man from Uzbekistan over the killing of a senior Russian general and his assistant in Moscow a day earlier. Lt. Gen. Igor Kirillov, who headed Russia’s ...

Lieutenant General Igor Kirillov was the head of Russia's Nuclear, Biological, and Chemical Protection Troops. Authorities said the explosion was caused by a bomb hidden inside an electric scooter.

Lieutenant General Igor Kirillov, head of Russia’s Nuclear, Biological, Chemical Defence Forces (NBC), was killed in an explosion in Moscow in an assassination claimed by Ukraine

Russia’s top security agency says it has arrested four Russians accused of making preparations to kill senior Defense Ministry officials on Ukraine's orders.