Explosions were heard outside of Ariana Grande's concert in Manchester, which led to people quickly scrambling to get out of the Manchester Arena, the largest indoor arena in Europe. According to new reports, 19 people were killed in the explosion, which police are expecting is a terroristic bombing.

Concertgoer Catherine Macfarlane shared her experience from inside the arena, telling Reuters, "We were making our way out and when we were right by the door there was a massive explosion and everybody was screaming. It was a huge explosion -- you could feel it in your chest. It was chaotic. Everybody was running and screaming and just trying to get out."

Check out footage of people trying to get out of the arena above.

Source: Reuters