On 15 July 2014, at around 8:40 am MSK (UTC+04:00), an outbound Moscow Metro train derailed between Park Pobedy and Slavyansky Bulvar stations of the Arbatsko-Pokrovskaya Line.

[3] The Moscow Metro, one of the busiest in the world[4] and serving up to nine million passengers on a daily basis, covered 325.4 kilometres (202.2 mi) of route and included 194 stations at the time of the derailment.

[citation needed] Despite having a reputation for reliability, the system had been increasingly suffering from mismanagement, cost-cutting practices, poor maintenance and outages in recent years.

[citation needed] The derailment also caused a massive power outage on the line; another train, which was located in the tunnel at the time of accident some 200 metres (660 ft) from Slavyansky Bulvar, was also stuck, and passengers had to be evacuated.

[citation needed] Early reports cited a power surge as the cause of the derailment, but this has not been confirmed and remains under investigation.

It had an elevator, but it wasn't very big, so first of all we put the injured in the elevator.A spokesperson for the transport commission indicated that all passengers were "evacuated from the affected stations by midday".

Vladimir Markin, the Committee's official representative, said that several causes for the accident were being considered, but that all were technical, there being no connection with terrorist attacks.

According to investigators, they installed it incorrectly two months previously using a 3 mm (0.12 in) wire instead of special equipment to forcibly lock the switch, as it led to a yet incomplete tunnel.

[7] On 22 July 2014, Ivan Besedin, chief executive of the Moscow Metro, was removed from office by Mayor Sergey Sobyanin.