London’s Heathrow Airport will remain closed for the rest of the day Friday after a massive fire at an electricity substation caused a power outage at the major transportation center. More than a thousand of flights around the world are expected to be canceled or disrupted. NBC’s Raf Sanchez reports for TODAY. » Subscribe to TODAY: youtube.com/@TODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: today.com Find TODAY on Facebook: facebook.com/today Follow TODAY on Twitter: twitter.com/TODAYshow Follow TODAY on Instagram: instagram.com/todayshow » Stream TODAY All Day: today.com...