Russia’s emergencies ministry said Saturday that the number of people killed by the Ukrainian strike had risen to 14 people, with 108 injured.
“According to updated information, 12 adults and two children were killed in Belgorod. Another 108 people, including 15 children, were injured,” the ministry said.
President Vladimir Putin has been briefed about the strike, the President’s spokesman Dmitry Peskov said.
Belgorod is about 30 kilometers (19 miles) from the border with Ukraine and has been repeatedly targeted by what Russia says is indiscriminate shelling by Kyiv’s forces.
A child was also killed by Ukrainian shelling in the border region of Bryansk, local Governor Alexander Bogomaz said in a post on social media on Saturday.
Separately, Russia’s Defense Ministry said it had intercepted 32 Ukrainian drones over the border regions of Bryansk and Kursk, as well as the regions of Oryol and Moscow.
The strikes come a day after Russian forces launched a barrage of air strikes across Ukraine in one of the deadliest attacks since the conflict began last year.
At least 39 people were killed, including 16 in the capital Kyiv, authorities said, as rescuers continued to comb through the rubble into Saturday.