A railway track in the Voronezh Region of Russia was damaged as a result of the detonation of an explosive device immediately before the train passed, Russia's Federal Security Service (FSB) said on Thursday.
"The Federal Security Service of Russia says that this morning, as a result of the detonation of an explosive device immediately before the passage of a train, a railway track in the Voronezh Region was damaged," the FSB said in a statement.
All the circumstances of the incident are being investigated, and the scene of the incident is being inspected, the FSB said, adding that based on the initial indications, there are all grounds for initiating a criminal case under the article "terrorism."