Moscow Mayor Sergei Sobyanin has ordered an increase in the number of sniffer dogs patrolling the metro, a year after suicide bombings hit two of its stations.
The number of police units with sniffer dogs will be increased to 250, a source in the City Hall told RIA Novosti on Wednesday.
The suicide attacks on two Moscow metro stations on March 29, 2010, left 40 dead and dozens injured.
MOSCOW, March 23 (RIA Novosti)
