A Japanese maglev train has broken its own speed record. Operator JR Central said the train, which is the fastest passenger train in the world, reached 375mph (603kph) in a test run today. This surpassed its previous record of 361mph (581kph) set in 2003.

The train travelled for just over a mile (1.8km) at a speed exceeding 373mph (600kph).

A Japanese maglev train that is the fastest passenger train in the world runs on the Maglev Test Line in Tsuru, about 80 kilometers (50 miles) west of Tokyo Tuesday, April 21, 2015. Operator JR Central said the train reached 603 kilometers per hour (375 miles per hour) in the test run on Tuesday, surpassing its previous record of 361 mph (581 kph) set in 2003. (Junko Ozaki/Kyodo News via AP)

Japan's high-speed rail services are among the most advanced in the world, with hundreds of trains running each day with minimal delays.

The Maglev Test Line, near Mount Fuji, about 50 miles (80km) west of Tokyo, is developing technology for use on a future link between Tokyo and Osaka. The magnetic levitation trains hover above rails, suspended by powerful magnets.