The head of the regional military administration of Ukraine's central Dnipropetrovsk region said Russian strikes had interrupted rail traffic and caused a fire.
Valentyn Reznichenko said a rocket hit the railway in Pavlohrad district, forcing suspension of train traffic.
"One rocket hit the railway," he said. "Tracks and electric lines are badly damaged. Train wagons exploded. Train traffic is suspended. Rescuers are putting out the fire."
Reznichenko said no one was killed, according to preliminary information, but a second round hit an open area, causing a fire. One person was injured, he said.
The office of Ukraine's Prosecutor General said a criminal investigation has been opened into the attack.
"According to the investigation, on the afternoon of April 2, 2022, the Armed Forces of the Russian Federation, ignoring the norms of international humanitarian law, carried out a rocket attack on a civilian transport railway hub and an open area of the city of Pavlohrad," according to a statement on Telegram from the office. "As a result of the airstrike of the Russian invaders, guided missiles damaged railway tracks and freight cars."
There were no military facilities on the territory of the railway hub, the statement added.