This story is breaking out of Manchester in the United Kingdom.
5:45AM: For the latest updates from CBS News, click here.
5:22PM: The Manchester Arena is confirming that the blast occurred outside the arena.
5:06PM: The latest is that at least 20 are dead, hundreds are injured. Still no motive, or confirmation of what exactly happened.
3:56PM: The Guardian just posted an eyewitness report, “Erin McDougle, 20, from Newcastle said: “There was a loud bang at the end of the concert. The lights were already on so we knew it wasn’t part of the show. At first we thought it was a bomb. There was a lot of smoke. People started running out. When we got outside the arena there were dozens of police vans and quite a few ambulances.
A group of young men from Sheffield said they had seen at least five people covered in blood and others being carried out by bouncers. “Ariane Grande had just gone behind the curtain and the lights came up when there was this massive bang and a big cloud of smoke. I saw five people with blood all down them,” said one.
Sophie Tedd, 25, from Darlington, said the noise and smoke seemed to come from the tiered seating stage right. “We were sitting on that side then suddenly there was this big bang in the block next to us. Everyone started screaming and we nearly got trampled on. There was a burning smell.”
3:20PM: TMZ reports, “the explosions occurred at the end of Grande’s concert. One of the concertgoers tweeted, “Just ran from an explosion, genuinely thought were going to die.”
People are writing on Twitter that there is blood everywhere … people are injured and bleeding.
It was an odd scene … while fans were scrambling for safety they were clutching pink balloons that apparently had been dropped on the crowd.
A source connected with Ariana tells us she had just left the stage when everyone heard what appeared to be an explosion.
Police descended on the area. Authorities are urging people to stay clear of the area.”
This is a developing story.