President Volodymyr Zelensky on May 14 said he had instructed Ukraine's military to prepare "possible formats for our response" to a deadly Russian missile and drone strike on Kyiv that killed at least 24 people and injured at least 48 others

Several people in Kyiv were killed and at least 20 people were reported missing after 24 hours of intense Russian airstrikes.

Key developments on May 14: * Zelensky instructs military to prepare response to Russia's deadly Kyiv attack * Russia 'ripping off' Ukraine's drone forces success, Unmanned…