It is specified that the explosions took place in the central Pechersk district, on Vladimirskaya Street in the Shevchenko district and on Vozdukhoflotsky Avenue. Smoke is rising. Sounds of explosions were heard from 08:20 (coinciding with Moscow time).
Experts believe this is in retaliations of the bombing of Crimea bridge, a vital access bridge to Russia military zone of Crimea. From all indications, Russia will step up its attack on the capital of Kiev as a message to Kiev on what expects after the perfection of the annexation documentations. If the west dont increase its supply to Kiev.
Some analysis believes the winter will not stop Russia from moving on with its goals in Ukraine. In fact, Russia will escalate the war this winter. If you flashback on Russia history in 2nd World War, Russia used winter season to accomplish more during that war, looking at its modern technology in its disposal now and the ongoing mobilization which have exceed the 300,000 announced.
The building of the Ukrainian Security Service is located on Vladimirskaya Street and could be the target.