Wolodymyr Selenskyj, the Ukrainian President, confirmed the attack in which rockets met a passenger train after warning that Russia could plan something "particularly cruel" for independence.
The strikes took place in Chaplyne, a city with around 3,500 inhabitants in the Dnipropetrovsk region, about 90 miles west of Donetsk.
reports reported after the attack, four wagons.
In a video address to the United Nations Security Council, Mr. Zelensky said: “Four passenger cars are now on fire. So far, at least 15 people have been killed and about 50 people were injured.
"The rescuers work, but unfortunately the number of fatalities could increase. This is our daily life."