The death toll from a Russian ballistic missile attack on Ukraine's northeastern city of Sumy has risen to 34, while 117 people were injured, according to a statement from Ukraine's State Service for Emergencies.

Two children were among the dead, and 15 other children were wounded in the attack, the statement said.

According to Sumy regional governor Volodymyr Artyukh, most of the deaths occurred in a trolleybus that was hit by the strike. The attack also caused damage to the local university and nearby apartment buildings.

Kyrylo Budanov, chief of the Main Intelligence Directorate of the Ukrainian Defense Ministry, said Russian forces launched two Iskander-M/KN-23 ballistic missiles at Sumy from Russia's Kursk and Voronezh regions on Sunday morning.