The Russian military says it has successfully test-fired an intercontinental ballistic missile as part of regular efforts to check the readiness of Soviet-built missiles.

Russia's Strategic Missile Forces spokesman Alexander Vovk says the RS-18 Stiletto missile was launched Wednesday from the Baikonur cosmodrome in Kazakhstan.

Vovk said in a statement the launch was intended to confirm the missile's reliability as part of efforts to extend the lifetime of this type of missile.

Russia's strategic forces have conducted regular test launches of Soviet-built ballistic missiles to check their performance. The military has repeatedly extended the lifetime of Soviet-built weapons as the government lacks the funds to replace them quickly with new weapons.