Police have warned people to stay away from the area.

By Jessica Plautz
May 22, 2017
Police and medics respond to an explosion at Manchester Arena after an Ariana Grande concert on May 22, 2017.
| Credit: Getty Images

Initial reports of an explosion at an Ariana Grande concert Monday night at Manchester Arena, in England, have turned tragic.

At least 19 people have died, and 50 more are injured, according to Greater Manchester Police. The authority stated this is “being treated as terrorist incident until police know otherwise.”

Police closed off the area surrounding Manchester Arena, and performed a controlled explosion on a suspicious item that turned out to be an abandoned article of clothing. The venue holds as many as 20,000 people, according to CNN.

“Ariana Grande had left, the lights had come up, everyone was just getting out of their seats and walking toward the stairs when all of a sudden this huge sound, which sounded like an explosion, went off,” Karen Ford, who was attending the concert with her daughter, told BBC.

Transportation to and from the area, and around Manchester, could be affected. Police are warning people to stay away from the area, The Guardian reported.

As has become common practice in the aftermatch of similar incidents, other major cities are now watching for additional information in case of threats.

“Our prayers are with the victims, their families, and the first responders in Manchester,” New York City Mayor Bill de Blasio posted on Twitter. “The NYPD is closely monitoring the situation.”

For the most recent reports out of Manchester, follow the police authority on Twitter.