Nightly Check-In: Russian Airstrike Targets Lviv

For the first time, an attack has targeted the Ukrainian city of Lviv, an area that most people in the country thought would remain safe. We have several updates from overseas and the quickly changing invasion in Ukraine. Plus, world health leaders are keeping an eye on a new stealth COVID variant spreading in Europe. What we know about the mutation. NBC 7’s Catherine Garcia has your Nightly Check-In for Friday, March 18, 2022.