China, home to the world’s largest high-speed rail network, has expanded its operational mileage beyond 50,000 kilometers with the opening of a new high-speed line.

The total cost of Moscow-St. Petersburg high-speed railroad construction is currently estimated at 1.8 trillion rubles ($20.6 bln), First Deputy Finance Minister Irina Okladnikova told TASS in an interview, News.Az reports.