MANCHESTER, England -- Greater Manchester Police released a statement saying 19 people have been confirmed dead with around 50 injured following an incident Monday in a public space outside Manchester Arena in England, where pop singer Ariana Grande was performing.
The arena blast 'being treated as a terrorist incident' until police know otherwise.
Joseph Carozza, a representative from Grande's US record label, said the singer is OK and they are investigating what happened.
In a Facebook post, Greater Manchester Police released the following statement: "Emergency services are currently responding to reports of an explosion at Manchester Arena. There are a number of confirmed fatalities and others injured. Please AVOID the area as first responders work tirelessly at the scene. Details of a casualty bureau will follow as soon as available."
The warning to stay away from Manchester Arena came after reports of two loud explosions during an Ariana Grande concert Monday night.
Greater Manchester Police tweeted that emergency services were "responding to serious incident at Manchester Arena. Avoid the area. More details will follow as soon as available."
British Transport Police told CNN it was in the process of closing some transport in the area.
Video from near the scene showed a caravan of ambulances heading to the arena.
There were few further details of what happened during the concert by the American singer, but witnesses reported hearing two loud bangs coming from near the arena's bars.
"A huge bomb-like bang went off that hugely panicked everyone and we were all trying to flee the arena," concertgoer Majid Khan, 22, told Britain's Press Association. "It was one bang and essentially everyone from the other side of the arena where the bang was heard from suddenly came running towards us as they were trying to exit."
Added Oliver Jones, 17: "The bang echoed around the foyer of the arena and people started to run."
The Dangerous Woman Tour is the third concert tour by Grande to support her third studio album, Dangerous Woman. The tour began on February 3, 2017, in Phoenix, Arizona at the Talking Stick Resort Arena.
From Manchester the tour is to move through Europe, including Belgium, Poland, Germany, Switzerland and France, through the summer with stops in Brazil, Chile, Argentina, Costa Rica, Mexico and on to Japan, Thailand, the Philippines, New Zealand, Australia and more.
Leader of the Labour Party Jeremy Corbyn offered support on Twitter. "Terrible incident in Manchester. My thoughts are with all those affected and our brilliant emergency services."
Musicians such as Ed Sheeran, Nicki Minaj and Katy Perry all offered supportive tweets.
Perry tweeted Monday that she is "Praying for everyone at @ArianaGrande's show."
Stay with FOX 8 News and FOX8.com for more details as they become available.