Ukrainian President Volodymyr Zelensky delivers an address to the nation:

• urges Russia to stop "before it's too late" and says Ukraine poses no threat to Russia, adding that Kyiv wants peace but will defend itself if attacked
• says he sought contact with Russian President Vladimir Putin but the Kremlin did not respond to a phone call request
• most of Zelensky's speech was in Russian as he addressed Russian citizens pushing back against the Kremlin's narrative