Turkey Quake - Where Did It Hit and Why Was It So Dangerous?

More than 17,000 people are now known to have been killed and thousands injured by a huge earthquake which struck southeastern Turkey near the Syrian border. Rescue teams in both countries enter a third day working to find survivors who have been trapped underneath rubble from fallen buildings. Many other survivors across the country are now sleeping in cars, outside or in government shelters as their homes have been destroyed. ITV's Nick Dixon reports for Good Morning Britain.