Moscow has tightened security ahead of the May 9 parade, turning the city center into a heavily controlled zone.

Moscow has tightened security ahead of the May 9 parade, turning the city center into a heavily controlled zone. Checkpoints have been deployed at entrances to the capital, armored vehicles and machine gun-equipped SUVs were seen near the Kremlin, and special forces took positions on Kremlin towers, walls and surrounding buildings. Red Square is fully closed.