Moscow mayor fires metro chief after fatal accident

Flowers in memory of victims of Tuesday's accident are left next to a sign informing passengers that the station is closed due to technical reasons, at the entrance to a metro station in MoscowThe mayor of Moscow has dismissed the head of the Russian capital's metro network following an accident that killed at least 22 people, the mayor's office said on Tuesday. Mayor Sergei Sobyanin replaced Ivan Besedin, who had run the metro since February 2011, with Dmitry Pegov, a former official at a subsidiary of state-controlled Russian Railways. Russian state investigators have detained four Moscow metro workers suspected of safety breaches but Besedin was not among them. The accident is the worst in years on Moscow's metro, one of the world's busiest subway networks, and highlights concerns about Russia's patchy transport safety record.