Prospekt Mira
On 25 May 2005, a citywide blackout halted operation on some lines. The following lines, however, continued operations: Sokolnicheskaya, Zamoskvoretskaya from Avtozavodskaya to Rechnoy Vokzal, Arbatsko-Pokrovskaya, Filyovskaya, Koltsevaya, Kaluzhsko-Rizhskaya from Bitsevskiy Park to Oktyabrskaya-Radialnaya and from Prospekt Mira-Radialnaya to Medvedkovo, Tagansko-Krasnopresnenskaya, Kalininskaya, Serpukhovsko-Timiryazevskaya from Serpukhovskaya to Altufyevo and Lyublinskaya from Chkalovskaya to Dubrovka. There was no service on the Kakhovskaya and Butovskaya lines. The blackout severely affected the Zamoskvoretskaya and Serpukhovsko-Timiryazevskaya lines, where initially all service was disrupted because of trains halted in tunnels in the southern part of city (most affected by the blackout). Later, limited service resumed and passengers stranded in tunnels were evacuated. Some lines were only slightly impacted by the blackout, which mainly affected southern Moscow; the north, east and western parts of the city experienced little or no disruption.