At least seven people were killed and 17 injured when a whole section of a Russian apartment block collapsed after it was struck by a Soviet-era missile launched by Ukraine and shot down by Russia, Russian officials said, Paralel.Az reports citing NDTV.

In one of the deadliest attacks to date on the region of Belgorod, Ukraine launched what Russian officials said was a massive missile attack with Tochka ballistic missiles and Adler and RM-70 Vampire (MLRS) multiple launch rocket systems.

"Fragments of one of the downed Tochka-U missiles damaged an apartment building in the city of Belgorod," the ministry said.

Russian news agencies said at least seven people had been killed and 17 injured, including two children. Others were still trapped under the rubble.

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Rescue workers in the western Russian city of Belgorod have recovered the bodies of six people buried beneath the rubble of an apartment building that collapsed earlier on Sunday after being struck by a Ukrainian missile, Paralel.Az reports citing The Moscow Times.

"A sixth victim has been recovered from under the rubble in Belgorod," Russia's Emergency Situations Ministry said on Telegram after previously reporting that five people had been found dead in the same place.

Russia's Defense Ministry said earlier on Sunday that a Ukrainian Tochka-U missile hit a "residential district" in the city after it was intercepted by air defense systems.

"The number of injured, according to the latest data, is 20 people," emergency services were quoted as saying by the state-run TASS news agency. Russia's Health Minister had previously said 17 people were injured.

A video released by the Russian Emergency Situations Ministry showed firefighters and rescuers trying to remove a huge pile of tangled rubble.