WARNING: GRAPHIC CONTENT - 'Tens of thousands' killed in Mariupol says Zelenskiy

Ukrainian leaders said tens of thousands of people have likely been killed from Russia's assault on the southeastern city of Mariupol #RussiUkraine #Mariupol #RussiaUkraineWar #News #Reuters Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook:   / reuters   Follow Reuters on Twitter:   / reuters   Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en