Moscow experienced a large-scale drone attack overnight, according to local authorities. An oil refinery was struck, resulting in explosions and a fire – the second such incident this week. Several high-rise apartment buildings also appear to have been hit. Russian officials claim to have intercepted and destroyed 555 Ukrainian drones during the attack. The extent of damage and any casualties remain unconfirmed, but the incident marks a significant escalation in aerial attacks on Russian territory. Ukrainian officials have not yet claimed responsibility for the strikes. The attacks raise concerns about the vulnerability of critical infrastructure within Russia.