KYIV, Ukraine (AP) — More than 900 civilian bodies have been discovered in the region surrounding the Ukrainian capital following the withdrawal of Russian forces — most of them fatally shot, police said Friday, an indication that many people were “simply executed.”

The jarring numbers emerged shortly after Russia’s Defense Ministry promised to step up missile attacks on Kyiv in response to Ukraine’s alleged aggression on Russian territory. That ominous warning followed the stunning loss of Moscow’s flagship in the Black Sea, which a senior US defense official said Friday was indeed hit by at least one Ukrainian missile.

Around Kyiv, Andriy Nebytov, the head of Kyiv’s regional police force, said bodies were abandoned in the streets or given temporary burials. He cited police data indicating that 95 percent died from gunshot wounds.

“Consequently, we understand that under the (Russian) occupation, people were simply executed in the streets,” Nebytov said.

More bodies are being found every day, under rubble and in mass graves, he added. The largest number of victims were found in Bucha, where there were more than 350, he said.

According to Nebytov, utilities workers in Bucha gathered and buried bodies in the Kyiv suburb while it remained under Russian control. Russian troops, he added, were “tracking down” people who expressed strong pro-Ukrainian views.

More damage could be on the way for Kyiv after Russian authorities accused Ukraine of wounding seven people and damaging about 100 residential buildings with airstrikes in Bryansk, a region bordering Ukraine. Authorities in another border region of Russia also reported Ukrainian shelling Thursday.

“The number and the scale of missile attacks on objects in Kyiv will be ramped up in response to the Kyiv nationalist regime committing any terrorist attacks or diversions on the Russian territory,” Russian Defense Ministry spokesman Igor Konashenkov said.