MOSCOW, March 11 (Xinhua) -- The number of people killed in a Ukrainian missile attack on Russia's border region of Bryansk rose to seven, with 42 others injured, the region's governor Alexander Bogomaz said on Wednesday.

On Tuesday, Ukrainian armed formations carried out a massive strike using high-impact missile weapons on residential areas and other civilian infrastructure in the Bryansk region.

"Twenty people are receiving treatment in medical facilities in Bryansk, and their condition is stable," the governor said.

Rodion Miroshnik, the Russian Foreign Ministry's Ambassador-at-Large, said that crimes by Kiev, such as the attack on Bryansk, are aimed at derailing negotiations aimed at ending the conflict with Ukraine.

The Russian Investigative Committee said that at least eight missiles hit Bryansk, including seven UK-made Storm Shadow missiles, leaving more than 70 infrastructure facilities and vehicles damaged in the strike. ■