In the Lviv train station, people fleeing the Russian siege of the city of Mariupol describe the "horror" of the situation there. More than 2,000 civilians have been killed in Mariupol, according to the latest figures from the town hall, and around 300 deaths are feared in the town's theater, which was bombed by the Russian air force on March 16th while hundreds of people were sheltering there. Ukrainian president Zelensky says nearly 100,000 people are still trapped without food, water or power in the besieged city and enduring fierce shelling by Russian forces. IMAGES AND SOUNDBITES