The southern Ukrainian city of Mariupol has been under constant attack from Russian forces for 19 days, resulting in what the Red Cross has called a ‘humanitarian crisis of catastrophic proportions.’ On the Sky News Daily, Jonathan Samuels is joined by our data and forensics journalist Jack Taylor to analyse some of the latest footage coming out of Mariupol, and talks to Kate White from Medecins Sans Frontieres, who have 14 volunteers in the besieged city. Editor – Philly Beaumont Podcast producer – Rosie Gillott Junior podcast producer – Aishah Rahman Digital producer - David Chipakupaku