Russia's invasion of Ukraine hits an impasse amid fierce fighting and looming peace talks

Nearly 5,000 people have been killed and 160,000 remain trapped inside the city of Mariupol without heat, water or electricity. Ukraine said the city is on the verge of a humanitarian catastrophe, but no evacuation corridors were agreed on Monday, fearing Russia would launch attacks on anyone trying to flee. Special correspondent Jack Hewson reports from Kharkiv, Ukraine. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter:   / newshour   Instagram:   / newshour   Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe