Police will use video cameras to monitor the entire high-speed rail route from Moscow to St. Petersburg in northwest Russia, following a recent bomb attack, which killed 27 passengers, a police official said on Sunday.

Russian authorities have tightened security measures on railways and pledged to respond immediately to any threats to railway passengers following the November 27 terrorist attack on the Nevsky Express high-speed train, which was travelling from Moscow to St. Petersburg.

More than 90 passengers were also injured in the Nevsky Express explosion.

Video cameras will help police swiftly respond to any potential incidents along the rail route, the police official said.

Russia has recently adopted the newest rapid train, Sapsan, which is capable of traveling at a speed of 250 kmph (155 mph).

The train, which travels between Moscow and St. Petersburg and has replaced Nevsky Express trains, is a joint project between RZD and Germany's Siemens. It made its first commercial run between the country's two megalopolises in a record time of 3 hours and 45 minutes.

MOSCOW, January 17 (RIA Novosti)