A day after Moscow suffered a stinging symbolic defeat with the loss of the flagship of its Black Sea fleet, Russia’s Defense Ministry promised Friday to ramp up missile attacks on the Ukrainian capital in response to Ukraine’s alleged military “diversions on the Russian territory.”

The threat of intensified attacks on Kyiv came after Russian authorities accused Ukraine of wounding seven people and damaging about 100 residential buildings with airstrikes on Bryansk, a region that borders Ukraine. Authorities in another border region of Russia also reported Ukrainian shelling Thursday.

Kyiv has gradually displayed some signs of pre-war life after Russian troops failed to capture the city and retreated to focus on a concentrated assault in eastern Ukraine, leaving evidence of possible war crimes in their wake. A renewed bombardment could return the capital’s residents to sheltering in subway stations and the steady wail of air raid sirens.