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An explosion at a Kharkov railyard Tuesday damaged two tanker cars, according to Russian language news accounts.
According to data supplied by regnum.ru, the explosion was the second in two days directed against fuel tank cars bound for Ukrainian military forces fighting against Russian backed rebels in southeastern Ukraine.
Monday's attack hit two tanker cars as well, which contained fuel bound for Ukrainian military forces in southeastern Ukraine.
Tuesday's attack hit two empty tanker cars.
No one was reported hurt in either incident.
Ukrainian regional prosecutors in the past have fingered Russian supported guerrillas for previous bombing in and around Kharkov, many of them directed against facilities or organizations used to support the Ukrainian war effort against Russian backed rebels.
Kharkov has a large number of armed guerrilla groups in the region, according to local prosecutors.
Chris Covert writes about foreign military issues for Rantburg.com. He can be reached at grurkka@gmail.com. You can read past articles about the 2014 war in southeastern Ukraina by clicking here.