<p>The Ukrainian capital Kyiv came under Russian air attack early on Saturday, with air defence units in operation, officials and Reuters witnesses said.</p><p>Tymur Tkachenko, head of the capital's military administration, said drones were attacking the city and there was a threat Russian missiles could be deployed.</p><p>Tkachenko said a fire had broken out in one district after a strike.</p>
<p>The Ukrainian capital Kyiv came under Russian air attack early on Saturday, with air defence units in operation, officials and Reuters witnesses said.</p><p>Tymur Tkachenko, head of the capital's military administration, said drones were attacking the city and there was a threat Russian missiles could be deployed.</p><p>Tkachenko said a fire had broken out in one district after a strike.</p>