When the hijacked planes hit the World Trade Center on September 11 in 2001, the final phone calls from passengers on board were messages of love. 20 years on, we remember them. 💔 | News.com.au

137K views · 2.1K reactions | Don’t miss 9/11: One Day in America. Available to catch up on demand now, this groundbreaking documentary series tells the definitive story of the tragic events of 11th September 2001 through the experiences of those who were there. Watch on Sky, NOW, Virgin, BT, TalkTalk and TV Player. | National Geographic UK | Facebook