Ukraine's interior minister and his deputy were among 14 people killed on Wednesday when a helicopter crashed near a nursery outside the capital Kyiv. President Volodymyr Zelensky addressed the Davos economic forum via video link later in the day, urging the West to “speed” up aid for Ukraine, including tank deliveries. Read our live blog to see how all the day's events unfolded. All times are Paris time (GMT+1).
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