Watch: Aftermath of blast at Ariana Grande's UK concert

According to police, the blast has left 19 dead and is being treated as a terrorist attack

At least 19 people have been killed and 50 injured in an explosion at a pop concert by US star Ariana Grande in the Manchester city in the UK, police said on Tuesday. The explosion is being treated as a "terrorist incident". 

"Police were called to reports of an explosion at Manchester Arena. So far, 19 people have been confirmed dead with around 50 others injured," Greater Manchester Police said in a statement.

"This is currently being treated as a terrorist incident until police know otherwise," the statement added.

Eyewitnesses reported hearing a loud "bang" from inside the venue, which was playing host to a concert by American pop star Ariana Grande. Video footage from the scene showed bloodied victims being helped by emergency services.

Watch as people at the concert panic after the blast


Video courtesy: The New York Times