MOSCOW — Investigators detained two Moscow subway workers Wednesday in the wake of a deadly rush-hour derailment that killed 22 people and injured 136 others, CBS News reported.
RELATED: 20 people killed in Moscow Metro derailment
Russia's major investigative agency said in a statement it had detained a senior Moscow track foreman and his assistant. Investigators said a new rail switch at the point where the train left the tracks wasn't properly installed during repairs in May and was attached to the rail only by a single 3-millimeter wire, according to the report.
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(RT video from inside the tunnel after the derailment.)