Russia is reportedly working on the combat deployment of its Sarmat ICBM. The update comes amid heightened tensions between Russia and Ukraine over strikes with Western long-range weapons on Russian territory and Vladimir Putin updating the nuclear doctrine.

Experts say the missile is more powerful than the Oreshnik used by Russia to strike Ukraine last week, but has been beset by 'catastrophic' failures

Russia is set to deploy the RS-28 Sarmat intercontinental ballistic missile, known as 'Satan 2', to replace older missiles. This advanced nuclear missile can carry multiple warheads, reaching targets across the U.

President Vladimir Putin has reportedly ordered that the intercontinental ballistic missile Satan II be ready to deploy. The likely deployment of these missiles that can carry nulcear warhead would be a massive escalation in Ukraine war.